Instagram-text-python

Changes
- Replace emoji library with an internal emoji regex (6)

Fixes
- Handle surrogate emoji
- Ignore fitzpatrick emojis

Changes
- Add emoji parsing support to texts. `result.emojis` now lists the emojis in the parsed text, just like `result.tags` lists hashtags. (5)

Fixes
- Hashtags with no spaces between them weren't being parsed correctly
- Hashtags including only numbers weren't being parsed correctly

Changes
- URLs are not parsed as `a href` on Instagram and hashtags within URLs are treated as actual hashtags while parsing

Fixes
- Fix username parsing to work with the conditions Instagram has on usernames with dots (see 1)