init.meta.json support (#183)

* A minimum viable product for init.meta.json

* Properties support

* Add ignoreUnknownChildren support

* Apply requested changes

* Use reflection guiding

* Add a script to the test

* Change to ignoreUnknownInstances

* Apply requested changes

test-projects/meta_files/default.project.json

@@ -0,0 +1,6 @@
+{
+  "name": "test-model",
+  "tree": {
+    "$path": "src"
+  }
+}

test-projects/meta_files/expected-snapshot.json

@@ -0,0 +1,57 @@
+{
+  "name": "test-model",
+  "class_name": "Tool",
+  "properties": {
+    "Enabled": {
+      "Type": "Bool",
+      "Value": true
+    }
+  },
+  "children": [
+    {
+      "name": "A",
+      "class_name": "Folder",
+      "properties": {},
+      "children": [],
+      "metadata": {
+        "ignore_unknown_instances": true,
+        "source_path": "src/A",
+        "project_definition": null
+      }
+    },
+    {
+      "name": "Script",
+      "class_name": "Script",
+      "properties": {
+        "Disabled": {
+          "Type": "Bool",
+          "Value": true
+        },
+        "Source": {
+          "Type": "String",
+          "Value": "print(\"Hello, world\")"
+        }
+      },
+      "children": [],
+      "metadata": {
+        "ignore_unknown_instances": false,
+        "source_path": "src/Script",
+        "project_definition": null
+      }
+    }
+  ],
+  "metadata": {
+    "ignore_unknown_instances": false,
+    "source_path": "src",
+    "project_definition": [
+      "test-model",
+      {
+        "class_name": null,
+        "children": {},
+        "properties": {},
+        "ignore_unknown_instances": null,
+        "path": "src"
+      }
+    ]
+  }
+}

test-projects/meta_files/src/A/init.meta.json

@@ -0,0 +1,3 @@
+{
+  "ignoreUnknownInstances": true
+}

test-projects/meta_files/src/Script/init.meta.json

@@ -0,0 +1,5 @@
+{
+  "properties": {
+    "Disabled": true
+  }
+}

test-projects/meta_files/src/Script/init.server.lua

@@ -0,0 +1 @@
+print("Hello, world")

test-projects/meta_files/src/init.meta.json

@@ -0,0 +1,6 @@
+{
+  "className": "Tool",
+  "properties": {
+    "Enabled": true
+  }
+}