[master] Release v15! Query and CommonEnrichersConfig changes

[MrHinsh]

This update is a +semver: major change. There are many config changes!

Change 1: Updates all Processors to use only CommonEnrichersConfig and removes inline options. Only options set in CommonEnrichersConfig will be honored.

This will minimise the number of configuration options for processors, and reduce confusion and support tickets.

1. TfsNodeStructureOptions has been made the default so AreaMaps, IterationMaps, NodeBasePaths, PrefixProjectToNodes, ShouldCreateMissingRevisionPaths, and ReplicateAllExistingNodes are all removed from WorkItemMigrationContext and must instead be added to CommonEnrichersConfig in line with TfsNodeStructure. The documentation for AreaMaps, IterationMaps, NodeBasePaths has all been moved here.
2. TfsRevisionManagerOptions has been made default so ReplayRevisions and MaxRevisions is now only configurable by adding a TfsRevisionManagerOptions section to CommonEnrichersConfig. See TfsRevisionManagerOptions
3. 'TfsWorkItemLinkEnricherOptions' has been made the default moving its option FilterIfLinkCountMatches, and SaveAfterEachLinkIsAdded to CommonEnrichersConfig. See TfsWorkItemLinkEnricherOptions

  "CommonEnrichersConfig": [
    {
      "$type": "TfsNodeStructureOptions",
      "PrefixProjectToNodes": false,
      "NodeBasePaths": [],
      "AreaMaps": {
        "^Skypoint Cloud$": "MigrationTest5"
      },
      "IterationMaps": {
        "^Skypoint Cloud\\\\Sprint 1$": "MigrationTest5\\Sprint 1"
      },
      "ShouldCreateMissingRevisionPaths": true,
      "ReplicateAllExistingNodes": true
    },
    {
      "$type": "TfsWorkItemLinkEnricherOptions",
      "Enabled": true,
      "FilterIfLinkCountMatches": true,
      "SaveAfterEachLinkIsAdded": false
    },
    {
      "$type": "TfsRevisionManagerOptions",
      "Enabled": true,
      "ReplayRevisions": true,
      "MaxRevisions": 0
    }
  ],

Change 2: Update the Query system to no longer have two parts that are added together. All queries are now the full query. There are no docs on this but a typical query now looks like:

 "WIQLQuery": "SELECT [System.Id] FROM WorkItems WHERE [System.TeamProject] = @TeamProject AND [System.WorkItemType] NOT IN ('Test Suite', 'Test Plan','Shared Steps','Shared Parameter','Feedback Request') ORDER BY [System.ChangedDate] desc",

Change 3: Added a String Manipulator to combat the new 100000 max string length and the inability of the ObjectModel to support special chars:

    {
      "$type": "StringManipulatorEnricherOptions",
      "Enabled": true,
      "MaxStringLength": 1000000,
      "Manipulators": [
        {
          "$type": "RegexStringManipulator",
          "Enabled": false,
          "Pattern": "[^( -~)\n\r\t]+",
          "Replacement": "",
          "Description": "Remove invalid characters from the end of the string"
        }
      ]
    }

Real version of #1889