feat!: support only .NET Framework 4.7.2

In order to conform with the plugin format and the workflow, the .csproj
file was moved up a level to the root of the `src` folder and the
solution file was renamed.

Workflows were also changed to match the plugin workflows.

BREAKING CHANGE: Supports ONLY .NET Framework 4.7.2

src/EssentialsPlugins-builds-4-series-caller.yml

@@ -0,0 +1,21 @@
+name: Build Essentials Plugin
+
+on:
+  push:
+    branches:
+      - '**'
+
+jobs:
+  getVersion:
+    uses: PepperDash/workflow-templates/.github/workflows/essentialsplugins-getversion.yml@main
+    secrets: inherit
+  build-4Series:
+    uses: PepperDash/workflow-templates/.github/workflows/essentialsplugins-4Series-builds.yml@main
+    secrets: inherit
+    needs: getVersion
+    if: needs.getVersion.outputs.newVersion == 'true'
+    with:
+      newVersion: ${{ needs.getVersion.outputs.newVersion }}
+      version: ${{ needs.getVersion.outputs.version }}
+      tag: ${{ needs.getVersion.outputs.tag }}
+      channel: ${{ needs.getVersion.outputs.channel }}

src/PepperDash Core.sln

@@ -1,25 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.1.32228.430
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PepperDash_Core", "Pepperdash Core\PepperDash_Core.csproj", "{66EB9188-E7AC-410D-AD59-931131DA7C2E}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{66EB9188-E7AC-410D-AD59-931131DA7C2E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{66EB9188-E7AC-410D-AD59-931131DA7C2E}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{66EB9188-E7AC-410D-AD59-931131DA7C2E}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{66EB9188-E7AC-410D-AD59-931131DA7C2E}.Release|Any CPU.Build.0 = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {E4615FA3-8C8C-4DC0-897B-E85408B4E341}
-	EndGlobalSection
-EndGlobal

src/PepperDash.Core.4Series.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <RootNamespace>PepperDash.Core</RootNamespace>
     <AssemblyName>PepperDashCore</AssemblyName>
-    <TargetFrameworks>net472;net6</TargetFrameworks>
+    <TargetFramework>net472</TargetFramework>
     <Deterministic>true</Deterministic>
     <NeutralLanguage>en</NeutralLanguage>
     <OutputPath>bin\$(Configuration)\</OutputPath>
@@ -15,7 +15,7 @@
     <PackageTags>crestron;4series;</PackageTags>
     <Version>2.0.0-local</Version>
     <InformationalVersion>$(Version)</InformationalVersion>
-    <PackageOutputPath>../../package</PackageOutputPath>
+    <PackageOutputPath>../output</PackageOutputPath>
     <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">