Sqllex

- Issue fixed, added new classes from v0.2.2.0 into __init__ files of next dirs sqllex.classes and sqllex.core.entities

- Added TRANSACTIONS support!
- - Added new classes SQLite3xTransaction, PostgreSQLxTransaction, TransactionStatus, AbstractTransaction
- - [read more](https://github.com/v1a0/sqllex/blob/main/docs/database-transaction.md)
- Docs upd

- Added GROUP BY [(issue 54)](https://github.com/v1a0/sqllex/issues/54)
- Tests updated (added tests for GROUP BY, raw sql tablse selects moved to one func)
- Typing fixing
- Docs upd
- Minor bugfixes

- Fixed issue [59](https://github.com/v1a0/sqllex/issues/59)
- Fixed issue [52](https://github.com/v1a0/sqllex/issues/52)
- Complete remastering of unit tests
- Speed tests moved to tests_sqllex.py
- Typing mistakes fixed
- Docs update
- Other minor fixes

- CVE-2022-0329, Delgan/loguru563
- Changed dependency version up to loguru v0.6.0
- Added feature to set optional sqlite3 connection parameters 57
- Added option to desable connetion with Database object init 56
- [IN PROGRESS] "With-as" statement 55
- Fixed BUG | Typing mistakes 51
- Docs update

- Issue 46 fixed
- LIKE (and all other pql const-s) added to sqllex.constants.sqlite
- WHERE type checking fixed
- docs update