[ADD] Add installation for MNE-CPP library.
[CHANGE] Use arg prefix and some other changes.
[CHANGE] Use constants.
[ADD] Add installer for FieldTrip Buffer.
[ADD] Add installer for Point Cloud Library.
[RENAME] Rename MNE-CPP.
[CHANGE] Rename private methods.
[CHANGE] Add and check return statement.
[ADD] Print function for UI.
[REMOVE] Remove Qt5 static installation.