CI Update - Move Microsoft.Extensions.* to dotnet/docs (#3332)

* CI Update

* remove attributes temporarily again

* add internal namespaces filter

* remove extra spaces

* format true/false as possible

* more formatting

* fix build issues

* fix build issues

* global improvements/formatting

* minor fixes

Author: mairaw

xml/FrameworksIndex/dotnet-plat-ext-1.0.xml

@@ -465,7 +465,7 @@
         <ReturnType>System.Int32</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>Gets the number of metadata set on the item</summary>
+        <summary>Gets the number of metadata set on the item.</summary>
         <value>An integer representing the number of metadata items.</value>
         <remarks>
           <format type="text/markdown"><![CDATA[  

xml/FrameworksIndex/dotnet-plat-ext-1.1.xml

@@ -60,7 +60,7 @@
         <ReturnType>Microsoft.Build.Construction.ElementLocation</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>Location of the project attribute</summary>
+        <summary>Gets the location of the project attribute.</summary>
         <value>Returns <see cref="T:Microsoft.Build.Construction.ElementLocation" />.</value>
         <remarks>To be added.</remarks>
       </Docs>

xml/FrameworksIndex/dotnet-plat-ext-2.0.xml

@@ -387,7 +387,7 @@
         <ReturnType>Microsoft.Build.Construction.ElementLocation</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>Gets the location of the remove attribute</summary>
+        <summary>Gets the location of the remove attribute.</summary>
         <value>The remove attribute's location.</value>
         <remarks>To be added.</remarks>
       </Docs>

xml/FrameworksIndex/dotnet-plat-ext-2.1.xml

@@ -116,7 +116,7 @@
         <ReturnType>Microsoft.Build.Construction.ElementLocation</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>Location of the item type attribute, if any</summary>
+        <summary>Gets the location of the item type attribute, if any.</summary>
         <value>Returns <see cref="T:Microsoft.Build.Construction.ElementLocation" />.</value>
         <remarks>To be added.</remarks>
       </Docs>
@@ -170,7 +170,7 @@
         <ReturnType>Microsoft.Build.Construction.ElementLocation</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>Location of the property name attribute, if any</summary>
+        <summary>Gets the location of the property name attribute, if any.</summary>
         <value>Returns <see cref="T:Microsoft.Build.Construction.ElementLocation" />.</value>
         <remarks>To be added.</remarks>
       </Docs>
@@ -227,7 +227,7 @@
         <ReturnType>Microsoft.Build.Construction.ElementLocation</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>Location of the task parameter attribute</summary>
+        <summary>Gets the location of the task parameter attribute.</summary>
         <value>Returns <see cref="T:Microsoft.Build.Construction.ElementLocation" />.</value>
         <remarks>To be added.</remarks>
       </Docs>