Important updates:
1. Python 3.6 is deprecated in tests and by default, try to move to Python3.7, but better to 3.8, because 3.7 will be deprecated in 2023.
Fixes
1. Fix for https://github.com/xnuinside/simple-ddl-parser/issues/177
Improvements
1. Added support for Oracle 2 component size for types, like '30 CHAR'. From https://github.com/xnuinside/simple-ddl-parser/issues/176