One click to increase Server RAM

[hellofaizan]

By default the server runs in 1024 MB RAM, we want to assign more RAM to server to runs bigger plugins. Allow us to increase RAM

BTW, awesome project @NickAwrist

[NickAwrist]

Added a new spinner in the server info window to change the amount of memory for a server. Plugin is also updated on Jetbrains, v1.0.1