[unity] Updated Spine LWRP UPM package for Unity 2019.2 - added separate package.json files for unity 2019.1 and 2019.2.

CHANGELOG.md

@@ -157,8 +157,11 @@
   * Added `Create 2D Hinge Chain` button at `SkeletonUtilityBone` inspector, previously only `Create 3D Hinge Chain` was available.
   * **Now supporting Lightweight Render Pipeline (LWRP) through an additional UPM package.**
     * **Installation:** You can download the Unity Package Manager (UPM) package via the [download page](http://esotericsoftware.com/spine-unity-download) or find it in the [spine-runtimes/spine-unity/Modules](https://github.com/EsotericSoftware/spine-runtimes/tree/3.8-beta/spine-unity/Modules) subdirectory on the git repository. You can then either unzip (copy if using git) the package to
-      a) the `Packages` directory in your project where it will automatically be loaded, or
-      b) to an arbitrary directory outside the Assets directory and then open Package Manager in Unity, select the `+` icon, choose `Add package from disk..` and point it to the package.json file.    
+      * a) the `Packages` directory in your project where it will automatically be loaded, or
+      * b) to an arbitrary directory outside the Assets directory and then open Package Manager in Unity, select the `+` icon, choose `Add package from disk..` and point it to the package.json file.
+
+      > If you are using git and Unity 2019.2 or newer versions and receive an error that dependencies could not be resolved by the package manager (only higher versions of Unity's `Lightweight RP` package are available, e.g. `6.9.0` and up), please copy the prepared package-UNITYVERSION.json file for your Unity version (e.g. `package-2019.2.json`) over the existing package.json file to change the dependency accordingly. Unfortunately Unity's Package Manager does not provide a way to specify a version range for a dependency like "5.7.2 - 6.9.0" yet, so this manual step is necessary for git users.
+     
       The Project panel should now show an entry `Spine Lightweight RP Shaders` under `Packages`. If the directory is not yet listed, you will need to close and re-open Unity to have it display the directory and its contents.
     * **Usage:** The package provides two shaders specifically built for the lightweight render pipeline:
       * `Lightweight Render Pipeline/Spine/Skeleton Lit`, as a lightweight variant of the `Spine/Skeleton Lit` shader and

spine-unity/Modules/com.esotericsoftware.spine.lwrp-shaders/package-2019.1.json

@@ -0,0 +1,22 @@
+{
+	"name": "com.esotericsoftware.spine.lwrp-shaders", 
+	"displayName": "Spine Lightweight RP Shaders",
+	"description": "This plugin provides lightweight render pipeline (LWRP) shaders for the spine-unity runtime.\n\nPrerequisites:\nIt requires a working installation of the spine-unity runtime, version 3.8.\n(See http://esotericsoftware.com/git/spine-runtimes/spine-unity)",
+	"version": "3.8.0",
+	"unity": "2019.1",
+	"author": {
+		"name": "Esoteric Software",
+		"email": "contact@esotericsoftware.com",
+		"url": "http://esotericsoftware.com/"
+	},
+	"dependencies": {
+		"com.unity.render-pipelines.lightweight": "5.7.2"
+	},
+	"keywords": [
+		"spine",
+		"lwrp",
+		"lightweight",
+		"render pipeline",
+		"shaders"
+	] 
+}

spine-unity/Modules/com.esotericsoftware.spine.lwrp-shaders/package-2019.2.json

@@ -0,0 +1,22 @@
+{
+	"name": "com.esotericsoftware.spine.lwrp-shaders", 
+	"displayName": "Spine Lightweight RP Shaders",
+	"description": "This plugin provides lightweight render pipeline (LWRP) shaders for the spine-unity runtime.\n\nPrerequisites:\nIt requires a working installation of the spine-unity runtime, version 3.8.\n(See http://esotericsoftware.com/git/spine-runtimes/spine-unity)",
+	"version": "3.8.0",
+	"unity": "2019.2",
+	"author": {
+		"name": "Esoteric Software",
+		"email": "contact@esotericsoftware.com",
+		"url": "http://esotericsoftware.com/"
+	},
+	"dependencies": {
+		"com.unity.render-pipelines.lightweight": "6.9.0"
+	},
+	"keywords": [
+		"spine",
+		"lwrp",
+		"lightweight",
+		"render pipeline",
+		"shaders"
+	] 
+}

spine-unity/Modules/com.esotericsoftware.spine.lwrp-shaders/package.json

@@ -3,7 +3,7 @@
 	"displayName": "Spine Lightweight RP Shaders",
 	"description": "This plugin provides lightweight render pipeline (LWRP) shaders for the spine-unity runtime.\n\nPrerequisites:\nIt requires a working installation of the spine-unity runtime, version 3.8.\n(See http://esotericsoftware.com/git/spine-runtimes/spine-unity)",
 	"version": "3.8.0",
-	"unity": "2018.3",
+	"unity": "2019.1",
 	"author": {
 		"name": "Esoteric Software",
 		"email": "contact@esotericsoftware.com",