feat: Added functionality to add filters from custom app on standard …

[aasif-patel]

Now we can add custom report filters on Standard report like General Ledger, Stock Balance etc
Step 1. Create an js file with list of filters
e.i

Step 2. Add the name of the Report with path of above file in hooks.py
e.i

That's it! It will render your filter on the report.

Note:-
Please stick to the instructions, js file should contain only array of filter object.
If other app trying to add same filter name then it will ignore, mean did not add multiple filter with same name.