Add example fabric mod

gradle.properties

@@ -0,0 +1,18 @@
+# Done to increase the memory available to gradle.
+org.gradle.jvmargs=-Xmx1G
+org.gradle.parallel=true
+
+# Fabric Properties
+# check these on https://fabricmc.net/develop
+minecraft_version=1.21.8
+yarn_mappings=1.21.8+build.1
+loader_version=0.16.14
+loom_version=1.11-SNAPSHOT
+
+# Mod Properties
+mod_version=1.0.0
+maven_group=com.example
+archives_base_name=modid
+
+# Dependencies
+fabric_version=0.129.0+1.21.8