[docs] Document properties for configurations

Fixes xamarin#17738
Addresses the initial issue of just documenting which properties
are tied to which configuration. But to make the documentation
more helpful, we should provide further context about what exactly
these properties mean. However, this isn't trivial as some
properties are a bit cryptic..once further info is acquired, it
will be integrated in a later revision.

docs/configuration-properties.md

@@ -0,0 +1,26 @@
+Debug vs. Release Configuration Property Documentation
+========================================================
+
+There are a number of properties that are contingent upon the configuration setting chosen. The properties and their corresponding values are documented here to provide transparency and enable users to better create custom configuration modes as well.<br />
+
+### Release Configuration
+
+| **Property**                                            	| **Default value**                 	| **Condition?**                        	|
+|---------------------------------------------------------	|-----------------------------------	|---------------------------------------	|
+| UseSystemResourceKeys                                   	| true                              	|                                       	|
+| VerifyDependencyInjectionOpenGenericServiceTrimmability 	| false                             	|                                       	|
+| DebuggerSupport                                         	| false                             	|                                       	|
+| EnableAssemblyILStripping                               	| true                              	|                                       	|
+| RuntimeIdentifiers                                      	| maccatalyst-x64;maccatalyst-arm64 	| TargetFramework == netx.x-maccatalyst 	|
+| RuntimeIdentifiers                                      	| osx-x64;osx-arm64                 	| TargetFramework == netx.x-macos       	|
+<br />
+
+### Debug Configuration
+
+| **Property**             	| **Default value** 	| **Condition?**                        	|
+|--------------------------	|-------------------	|---------------------------------------	|
+| UseSystemResourceKeys    	| false             	|                                       	|
+| CodesignDisableTimestamp 	| true              	|                                       	|
+| DebuggerSupport          	| true              	|                                       	|
+| RuntimeIdentifiers       	| maccatalyst-x64   	| TargetFramework == netx.x-maccatalyst 	|
+| RuntimeIdentifiers       	| osx-x64           	| TargetFramework == netx.x-macos       	|