Various bugfixes for RedCommands

- Merged base commands now properly display help menus
- Merged base commands now properly display error messages when the command is misused
- Nested post-argument subcommands now display previous arguments in help menus properly
- Nested posted-argument subcommands followed by regular subcommands followed by more post-argument subcommands no longer break the command processor
- Does anyone other than me use these features?

build.gradle

@@ -13,7 +13,7 @@ repositories {
 }
 dependencies {
 	compileOnly "org.spigotmc:spigot-api:1.16.5-R0.1-SNAPSHOT"
-	implementation 'com.github.Redempt:RedCommands:1.1.3'
+	implementation 'com.github.Redempt:RedCommands:1.2'
 }
 sourceSets {
 	main {