Low Hanging Fruits

This is the first actual pre-release. Ports some essential modules from Rich.

Added

• Port _emoji_codes.py (emoji_codes.rs) in #64 from @wizard-28
• Port _emoji_replace.py (emoji_replace.rs) in #64 from @wizard-28
• Port _ratio.py (ratio.rs) in #67 from @wizard-28
• Port _export_format.py (export_format.rs) in #77 from @wizard-28
• Port color_triplet.py (color_triplet.rs) in #78 from @wizard-28
• Port region.py (region.rs) in #80 from @wizard-28
• Port filesize.py (filesize.rs) in #83 from @wizard-28
• Port cells.py (cells.rs) in #83 from @wizard-28
• Port _spinners.py (spinners.py) in #83 from @wizard-28. More spinners have been added from the spinners crate.