LocalVariableTables should be intelligently modified rather than stripped

[caseif]

In order to solve #12, I implemented a solution in which Nocturne strips Code attributes of their LocalVariableTable attributes. However, this is a very quick-and-dirty solution, and will require further work in the future (especially if we're to implement parameter renaming). Hence, I propose that a future update analyze these LVTs and intelligently tweak them to prevent strange decompiled output rather than remove them entirely.