Release 2.0.0 (#4021)

**What type of PR is this?**
> Uncomment only one ` /kind` line, and delete the rest.
> For example, `> /kind bug` would simply become: `/kind bug`

/kind feature

**What does does this PR do / why we need it**:

Release 2.0.0 of odo

**Which issue(s) this PR fixes**:

N/A

**PR acceptance criteria**:

N/A

**How to test changes / Special notes to the reviewer**:

N/A

Signed-off-by: Charlie Drage <charlie@charliedrage.com>

Dockerfile.rhel

@@ -16,7 +16,7 @@ LABEL com.redhat.component=atomic-openshift-odo-cli-artifacts-container \
     summary="This image contains the Linux, Mac and Windows version of odo"
 
 # Change version as needed. Note no "-" is allowed
-LABEL version=1.2.6
+LABEL version=2.0.0
 
 COPY --from=builder /go/src/github.com/openshift/odo/dist/bin/darwin-amd64/odo /usr/share/openshift/odo/mac/odo
 COPY --from=builder /go/src/github.com/openshift/odo/dist/bin/windows-amd64/odo.exe /usr/share/openshift/odo/windows/odo.exe

scripts/rpm-prepare.sh

@@ -5,7 +5,7 @@ set +ex
 echo "Reading ODO_VERSION, ODO_RELEASE and GIT_COMMIT env, if they are set"
 # Change version as needed. In most cases ODO_RELEASE would not be touched unless
 # we want to do a re-lease of same version as we are not backporting
-export ODO_VERSION=${ODO_VERSION:=1.2.6}
+export ODO_VERSION=${ODO_VERSION:=2.0.0}
 export ODO_RELEASE=${ODO_RELEASE:=1}
 
 export GIT_COMMIT=${GIT_COMMIT:=`git rev-parse --short HEAD 2>/dev/null`}