.Net6 (#112)

* Added .NET 6 support

* fix constants

* Upgrade Android sample app to .net6.0

* Fix build warnings and update android sample

* Change baseline version

* Fix build

* Delete unused code

* Update CIBuild.yml

* Update CIBuild.yml

* Update CIBuild.yml

* Update CIBuild.yml

* Update CIBuild.yml

* Update CIBuild.yml

* Update CIBuild.yml

* Update CIBuild.yml

* Update expired certificate

* Set min versions

* Fix api build

* Fix build warnings and update doc builds

* update metadata

* tweak readme

* Use net8 for ios/android

* Fix target frameworks for sample apps

* Fix UWP build

* update tfm

* Update to v3.0 and remove out of support frameworks

* Add BT device to net6-windows

* Add MAUI sample and delete Android

* Clean up

* Update github action dependency to supported version

* Update certificate

* Update certificate

* Fix RMC FixTime parsing that can lose sub-second precision with doubles (#117)

* Extract local variables for the parameters of DateTimeOffset

* Add seconds to FixTime as Ticks in order to preserve sub-second precision that can get lost by using doubles

---------

Co-authored-by: Justin King <justin.king@vibrationresearch.com>

* Cleanup of fix and add unit test to verify

---------

Co-authored-by: Morten Nielsen <mort5161@esri.com>
Co-authored-by: Justin King <56605940+justinswork@users.noreply.github.com>
Co-authored-by: Justin King <justin.king@vibrationresearch.com>

.github/workflows/ghpages.yml

@@ -28,7 +28,7 @@ jobs:
         Invoke-WebRequest -Uri "https://github.com/dotnet/docfx/releases/download/v${env:DOCFXVERSION}/docfx.zip" -OutFile ".tools/docfx/docfx.zip"
         [System.IO.Compression.ZipFile]::ExtractToDirectory(".tools/docfx/docfx.zip", ".tools/docfx" )
       env:
-        DOCFXVERSION: 2.58
+        DOCFXVERSION: 2.59.0
 
     - name: Install .NET OMD Generator
       run: dotnet tool install --tool-path .tools/omd dotMorten.OmdGenerator --version 1.3.1
@@ -45,10 +45,10 @@ jobs:
       env:         
         DOCFX_SOURCE_BRANCH_NAME: main
       run: |
-        nuget install memberpage -Version 2.58.0 -OutputDirectory docs
+        nuget install memberpage -Version 2.59.0 -OutputDirectory docs
         .tools/docfx/docfx.exe metadata docs/docfx.json
         dotnet build docs/AppliesToGenerator\DocFXAppliesToGenerator.csproj
-        docs/AppliesToGenerator\bin\Debug\netcoreapp3.1\DocFXAppliesToGenerator.exe docs/appliesToList.json
+        docs/AppliesToGenerator\bin\Debug\net6.0\DocFXAppliesToGenerator.exe docs/appliesToList.json
         .tools/docfx/docfx.exe build docs/docfx.json
         powershell -ExecutionPolicy ByPass -command "docs\FixApiRefLinks" -Path artifacts\docs_site\api\