2.1.0-snapshot-1

• the project has been split into modules
• added implementation build based on spigot platform
• configuration rewriten into nightconfig library, its still hocon, but now its a library which actually works
• theres no need for nt-core dependency anymore.
• added a new flat file storage. which is enabled by default. SQL support will be re-added in later snapshot of 2.1.0
• fxied few minor bugs

configuration changes:

• description field within class files is now list of strings instead of plain string

This is first alpha build for 2.1.0.
Spigot lacks bunch of features, but class management will work.
Sponge might be broken here and there.