Mail-parser

Highlights
- Added FUNDING.yml
- Fixed requirements

Highlights
- Now mail-parser can extract attachments in CID(PR 64)
- Added method to write attachments from object (issue 59)
- Fixed issue getting multi headers (issue 62)
- Upgrade requirements

Highlights
- Added field to get not managed email text part (`text_not_managed`)
- Using README.md in PyPI page

Highlights
- Added `content-disposition` header to mailparser object
- Fixed timezone field for manage half timezone (+0530)
- More stable requirements
- Many others fixes

Highlights

- Storing attachments on disk from command line tool.

Highlights

- Added `timezone` of mail date.