add readme and github workflows

.github/workflows/rocket-plugin-release.yml

@@ -0,0 +1,11 @@
+name: Build & Create GitHub Release
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - master
+
+jobs:
+  call-rocket-plugin-release:
+    uses: RestoreMonarchyPlugins/github-actions/.github/workflows/rocket-plugin-release.yml@master

README.md

@@ -0,0 +1,36 @@
+# Steam Group Rewards
+Reward players for joining your Steam group with a rank.
+
+## Features
+- Plugin checks every RefreshTimeSeconds if player is in Steam group specified in configuration.
+- If player is in the group, he gets a permission group specified in configuration.
+- If player leaves the group, he loses a permission group specified in configuration.
+- Optionally, you can enable announcement when player joins the group, so everyone can see it.
+- All calls to Steam API are done in a separate thread to not block the main thread. So it won't cause any lag on your server.
+
+I recommend adding a **/steam** command to your server that will open a link to your Steam group. You can create a **steam** permission group as well with permissions you want to give to players for joining, for example special kit or vault access.
+
+## Credits
+**Soer** for the idea and sponsoring the plugin.
+
+## Configuration
+```xml
+<?xml version="1.0" encoding="utf-8"?>
+<SteamGroupRewardsConfiguration xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <MessageColor>yellow</MessageColor>
+  <SteamGroupName>RestoreMonarchy</SteamGroupName>
+  <PermissionGroupID>vip</PermissionGroupID>
+  <RefreshTimeSeconds>300</RefreshTimeSeconds>
+  <EnableAnnouncement>true</EnableAnnouncement>
+</SteamGroupRewardsConfiguration>
+```
+
+## Translations
+```xml
+<?xml version="1.0" encoding="utf-8"?>
+<Translations xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <Translation Id="Announcement" Value="{0} received {1} for joining {2} Steam group!" />
+  <Translation Id="Added" Value="You received {0} for joining our Steam group." />
+  <Translation Id="Removed" Value="You lost {0} for leaving our Steam group." />
+</Translations>
+```

SteamGroupRewards/SteamGroupRewardsPlugin.cs

@@ -10,11 +10,8 @@
 using Rocket.Unturned.Player;
 using SDG.Unturned;
 using System;
-using System.Collections;
-using System.Collections.Generic;
 using System.Linq;
 using System.Net;
-using static Rocket.Unturned.Events.UnturnedEvents;
 
 namespace RestoreMonarchy.SteamGroupRewards
 {