Relate data functionality updated

Bugfixes:

• Relate data menu raising out of index error

Patch: interface menu bugs fixed

Query and relate options had a bug that selected wrong option if the user selection was not valid.

First fully functional release!

Implementation of all designed functions is completed 🎉!

• Query data
• Inser data
• Relate data (N:M)

New functionality: relate data with N:M relationships

N:M relationships have to be defined in relations list in custom/db_data.py.

Queries moved from queries.py to queries.sql file.

v0.4.0

moved queries from .py to .sql and created a function to parse them

Query data functionality

v0.3.0

Query data functionality

Insert data functionality

v0.2.0

Insert data functionality

First prototype with a working CLI

The project has a fully working command-line interface, however, the program has no functionality by now.