Adding a repo.json so that project manager can find templates inside this repo. Updating the templates.json to include a link to a zip of the multiplayer template

Signed-off-by: Gene Walters <[email protected]>

Templates/Multiplayer/template.json

@@ -1,6 +1,9 @@
 {
     "template_name": "Multiplayer",
     "origin": "The primary repo for Multiplayer goes here: i.e. http://www.mydomain.com",
+    "origin_url": "https://github.com/o3de/o3de-extras",
+    "origin_uri": "https://github.com/o3de/o3de-extras/releases/download/1.0/Template_Multiplayer.zip",
+    "repo_uri": "https://raw.githubusercontent.com/o3de/o3de-extras/development/Templates/Multiplayer",
     "license": "https://opensource.org/licenses/MIT",
     "display_name": "Multiplayer",
     "summary": "A multiplayer project template. Includes a built in network 3rd person player, player spawner, and network filtering example.",

repo.json

@@ -0,0 +1,11 @@
+{
+    "repo_name": "O3DE Extras - Extras gems, projects, and templates for O3DE",
+    "origin": "o3de-extras",
+    "repo_uri": "https://raw.githubusercontent.com/o3de/o3de-extras/development",
+    "summary": "A repository to hold various gems, projects, and templates for the O3DE engine.",
+    "additional_info": "See the README.md at the root of this repository for more information",
+    "last_updated": "2022-09-27",
+    "templates": [
+        "https://raw.githubusercontent.com/o3de/o3de-extras/development/Templates/Multiplayer"
+    ]
+}