[RelEng] Let Tycho build a self-contained p2-repo with minimal content

Additionally include all sources in the M2E-repo automatically.

See news:
https://github.com/eclipse-tycho/tycho/blob/master/RELEASE_NOTES.md#new-parameter-for-tycho-p2-repository-pluginassemble-repository
https://github.com/eclipse-tycho/tycho/blob/master/RELEASE_NOTES.md#new-option-to-filter-added-repository-references-when-assembling-a-p2-repository

org.eclipse.m2e.repository/category.xml

@@ -18,21 +18,6 @@
    <feature id="org.eclipse.m2e.sdk.feature">
       <category name="m2e"/>
    </feature>
-   <bundle id="slf4j.api"/>
-   <bundle id="slf4j.api.source"/>
-   <bundle id="ch.qos.logback.core"/>
-   <bundle id="ch.qos.logback.core.source"/>
-   <bundle id="ch.qos.logback.classic"/>
-   <bundle id="ch.qos.logback.classic.source"/>
-   <bundle id="com.google.gson"/>
-   <bundle id="com.google.gson.source"/>
-   <bundle id="org.apache.commons.cli"/>
-   <bundle id="org.apache.commons.cli.source"/>
-   <bundle id="jakarta.servlet-api"/>
-   <bundle id="com.google.guava"/>
-   <bundle id="org.jdom2"/>
-   <bundle id="jaxen"/>
-   <bundle id="org.jdom"/>
    <iu>
      <query> 
        <expression type="match">
@@ -44,9 +29,4 @@
      </query>
    </iu>
    <category-def name="m2e" label="Maven Integration for Eclipse"/>
-   <repository-reference location="https://download.eclipse.org/eclipse/updates/4.29/" enabled="true" />
-   <repository-reference location="https://download.eclipse.org/wildwebdeveloper/releases/1.3.0/" enabled="true" />
-   <repository-reference location="https://download.eclipse.org/tm4e/releases/0.8.1/" enabled="true" />
-   <repository-reference location="https://download.eclipse.org/lsp4j/updates/releases/0.21.0/" enabled="true" />
-   <repository-reference location="https://download.eclipse.org/lsp4e/releases/0.23.0/" enabled="true" />
 </site>

org.eclipse.m2e.repository/pom.xml

@@ -11,7 +11,8 @@
 		Sonatype, Inc. - initial API and implementation
 		Hannes Wellmann - Set up PGP-signing
 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
@@ -48,6 +49,22 @@
 					</dependency-resolution>
 				</configuration>
 			</plugin>
+			<plugin>
+				<groupId>org.eclipse.tycho</groupId>
+				<artifactId>tycho-p2-repository-plugin</artifactId>
+				<configuration>
+					<includeAllDependencies>true</includeAllDependencies>
+					<includeAllSources>true</includeAllSources>
+					<filterProvided>true</filterProvided>
+					<addIUTargetRepositoryReferences>true</addIUTargetRepositoryReferences>
+					<repositoryReferenceFilter>
+						<addOnlyProviding>true</addOnlyProviding>
+						<exclude>
+							<location>https://download.eclipse.org/tools/orbit/**</location>
+						</exclude>
+					</repositoryReferenceFilter>
+				</configuration>
+			</plugin>
 		</plugins>
 	</build>
 

target-platform/target-platform.target

@@ -4,7 +4,7 @@
 	<targetJRE path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17"/>
 	<locations>
 		<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/eclipse/updates/4.29/"/><!--Keep in sync with repo-ref in org.eclipse.m2e.repository/category.xml-->
+			<repository location="https://download.eclipse.org/eclipse/updates/4.29/"/>
 			<unit id="org.eclipse.sdk.feature.group" version="0.0.0"/>
 			<unit id="org.eclipse.equinox.p2.discovery.feature.feature.group" version="0.0.0"/>
 			<unit id="org.eclipse.ui.tests.harness" version="0.0.0"/>
@@ -32,10 +32,10 @@
 			<unit id="org.eclipse.wst.xsd.core" version="0.0.0"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/wildwebdeveloper/releases/1.3.0/"/><!--Keep in sync with repo-ref in org.eclipse.m2e.repository/category.xml-->
-			<repository location="https://download.eclipse.org/tm4e/releases/0.8.1/"/><!--Keep in sync with repo-ref in org.eclipse.m2e.repository/category.xml-->
-			<repository location="https://download.eclipse.org/lsp4e/releases/0.23.0/"/><!--Keep in sync with repo-ref in org.eclipse.m2e.repository/category.xml-->
-			<repository location="https://download.eclipse.org/lsp4j/updates/releases/0.21.0/"/><!--Keep in sync with repo-ref in org.eclipse.m2e.repository/category.xml-->
+			<repository location="https://download.eclipse.org/wildwebdeveloper/releases/1.3.0/"/>
+			<repository location="https://download.eclipse.org/tm4e/releases/0.8.1/"/>
+			<repository location="https://download.eclipse.org/lsp4e/releases/0.23.0/"/>
+			<repository location="https://download.eclipse.org/lsp4j/updates/releases/0.21.0/"/>
 			<unit id="org.eclipse.wildwebdeveloper.xml.feature.feature.group" version="0.0.0"/>
 			<unit id="org.eclipse.lsp4e" version="0.0.0"/>
 		</location>