Add H2 and MySQL support

gradle.properties

@@ -0,0 +1,16 @@
+# Done to increase the memory available to gradle.
+org.gradle.jvmargs=-Xmx1G
+
+# Fabric Properties
+	# check these on https://fabricmc.net/versions.html
+	minecraft_version=1.17.1
+	yarn_mappings=1.17.1+build.37
+	loader_version=0.11.6
+
+# Mod Properties
+	mod_version = 1.0.0
+	maven_group = net.quiltservertools
+	archives_base_name = ledger-databases
+
+# Dependencies
+	fabric_version=0.37.2+1.17