feat: add encoding property in table structure

Problem

tap-s3-csv does only support utf-8. This PR provides an encoding property in the table structure to specify a different encoding.

[ ] Bugfix (non-breaking change which fixes an issue)
[X] New feature (non-breaking change which adds functionality)
[ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
[ ] Documentation Update (if none of the other choices apply)

[X] Description above provides context of the change
[ ] I have added tests that prove my fix is effective or that my feature works
[ ] Unit tests for changes (not needed for documentation changes)
[ ] CI checks pass with my changes
[x] Bumping version in setup.py is an individual PR and not mixed with feature or bugfix PRs
[ ] Commit message/PR title starts with [AP-NNNN] (if applicable. AP-NNNN = JIRA ID)
[ ] Branch name starts with AP-NNN (if applicable. AP-NNN = JIRA ID)
[ ] Commits follow "How to write a good git commit message"
[ ] Relevant documentation is updated including usage instructions