Add upm support (#14)

* Add upm support

Allow users to add this to the Packages folder for it to be used as an embedded package
Users can then nicely add the repo as a submodule

* Add meta files

* Potential fix for assemblyPaths using their manifest name

* Fallback to windows #if

* Rename asmdefs

* Improve finding assemblies, always search in our assembly

Renamed Editor asmdef

* assemblyPaths small fixes, editor gui adapted

EditorGUI for the target assemblies is now just a string array. Removed code to find _allKnownAssemblies.
assemblyPaths renamed to assemblyNames is now a list.
By default only Assembly-CSharp and the Editor variant is targeted. The assembly containing this tool is always included so we find the attributes.

* Improve UI, dropdowns, add _allKnownAssemblies back

Simplified finding all assemblies, moved to RefreshAllKnownAssemblies()
Unity Assemblies are ignored by default.
Option to add all known assemblies.
Increased refresh time to 5 seconds from 1.

* Add gui headers, info box

* Update README.md

* Partial revert "assemblyPaths small fixes, editor gui adapted", remove UnityEditorInternal dependency

Use original code to find all assemblies, use `Path.GetFileNameWithoutExtension` instead of `PathUtils.NormallizeUnityAssemblyPath`.

* Use string[] for Options.assemblyNames

* Changed package.json

* Bug fix, disable whole gui in play mode

* Revert "Use string[] for Options.assemblyNames"

This reverts commit 8e1d0e3.

* Bug fix, hide errors for not finding default assemblies

Some project may not have any editor scripts so will always get an error as Assembly-CSharp-Editor does not exist.

* Merge fixes

* Review changes

* Removed upm author field

Author: rogerbarton

.gitignore

@@ -1,4 +1,3 @@
-*.meta
 scripts/LICENSE.txt
 *.sln
 .vs

LICENSE.txt.meta

@@ -11,7 +11,11 @@ Tool created mainly to solve old problem with reloading [native plugins](https:/
 
 ## Installation
 
-1. Download and add unity package from [releases](https://github.com/MCpiroman/UnityNativeTool/releases), or clone this repo to your project (note that if you don't use the prebuilt package and you're willing to use [low level interface callbacks](https://docs.unity3d.com/Manual/NativePluginInterface.html), you'll need to compile the stub plugin yourself form `stubLluiPlugin.c`).
+1. Download and add unity package from [releases](https://github.com/MCpiroman/UnityNativeTool/releases), or clone this repo to your project
+
+   - Clone it into the `<Project Root>/Packages` folder to use it as a local [embedded package](https://docs.unity3d.com/Manual/upm-embed.html) with [upm](https://docs.unity3d.com/Packages/com.unity.package-manager-ui@1.8/manual/index.html).
+
+   - Note that if you don't use the prebuilt package and you're willing to use [low level interface callbacks](https://docs.unity3d.com/Manual/NativePluginInterface.html), you'll need to compile the stub plugin yourself from `stubLluiPlugin.c`.
 
 2. In project settings, set _Api Compatibility Level_ to .NET 4.x or above.  
    Edit > Project Settings > Player > Other Settings > Api Compatibility Level

README.md

@@ -0,0 +1,16 @@
+{
+  "name": "com.mcpiroman.unity-native-tool",
+  "displayName": "Unity Native Tool",
+  "version": "7.1.0",
+  "description": "Tool for unloading native DLLs in the editor. \nhttps://github.com/mcpiroman/UnityNativeTool",
+  "keywords": [
+    "native",
+    "c++",
+    "dll"
+  ],
+  "category": "Unity",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mcpiroman/UnityNativeTool.git"
+  }
+}