Switch to fsproj-style FAKE setup

See: https://fake.build/guide/getting-started.html#Run-FAKE-using-a-dedicated-build-project

Interstellar.MacOS.sln

@@ -16,6 +16,10 @@ Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Examples.macOS.WebKit", "Ex
 EndProject
 Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Interstellar.MacOS.WebKit", "src\Interstellar.MacOS.WebKit\Interstellar.MacOS.WebKit.fsproj", "{77FAE56F-23ED-4B30-B961-BBC7B492AAFE}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "build", "build", "{2B1A37B9-3FA4-4FA3-A26F-32F2B5C2CF91}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "build", "build\build.fsproj", "{684CD76F-3338-42D4-8D53-0DA6F5F03C69}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -42,5 +46,12 @@ Global
 		{77FAE56F-23ED-4B30-B961-BBC7B492AAFE}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{77FAE56F-23ED-4B30-B961-BBC7B492AAFE}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{77FAE56F-23ED-4B30-B961-BBC7B492AAFE}.Release|Any CPU.Build.0 = Release|Any CPU
+		{684CD76F-3338-42D4-8D53-0DA6F5F03C69}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{684CD76F-3338-42D4-8D53-0DA6F5F03C69}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{684CD76F-3338-42D4-8D53-0DA6F5F03C69}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{684CD76F-3338-42D4-8D53-0DA6F5F03C69}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{684CD76F-3338-42D4-8D53-0DA6F5F03C69} = {2B1A37B9-3FA4-4FA3-A26F-32F2B5C2CF91}
 	EndGlobalSection
 EndGlobal

build.cmd

@@ -0,0 +1 @@
+dotnet run --project ./build/build.fsproj -- %*

build.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+dotnet run --project build/build.fsproj -- "$@"

nupkg-hack.fsx → build/NupkgHack.fs

@@ -1,4 +1,5 @@
-#r "System.IO.Compression"
+module build.NupkgHack
+
 open System
 open System.IO
 open System.IO.Compression
@@ -7,8 +8,6 @@ open System.Text.RegularExpressions
 open Fake.Core
 open Fake.IO
 
-Environment.CurrentDirectory <- __SOURCE_DIRECTORY__
-
 let changeVersionConstraints text =
     Regex("(?<=id=\"Interstellar.+?\"\\s+version=\")[^[\\]]*?(?=\")")
         .Replace (text, MatchEvaluator(fun m -> sprintf "[%s]" m.Value))
@@ -42,4 +41,4 @@ let hackNupkgAtPath (path: string) =
     use file = File.Open (path, FileMode.Open, FileAccess.ReadWrite, FileShare.None)
     hackNupkgFromStream path file
 
-//hackNupkgAtPath (Path.Combine ("artifacts", "Interstellar.Wpf.Chromium.nupkg"))
+//hackNupkgAtPath (Path.Combine ("artifacts", "Interstellar.Wpf.Chromium.nupkg"))