Adds user !info command

[lexicalunit]

In the future we can add things to a user's info, for example:

• Island Name https://github.com/theastropath/turbot/issues/109
• Switch Friend Code https://github.com/theastropath/turbot/issues/108
• Island Rules https://github.com/theastropath/turbot/issues/100
• Wants https://github.com/theastropath/turbot/issues/110
• Sall/Catalog Items https://github.com/theastropath/turbot/issues/18
• Etc...

[codecov-io]

Codecov Report

Merging #111 into master will decrease coverage by 0.32%. The diff coverage is 76.92%.

@@            Coverage Diff             @@
##           master     #111      +/-   ##
==========================================
- Coverage   99.55%   99.23%   -0.33%     
==========================================
  Files           1        1              
  Lines         906      919      +13     
  Branches      178      182       +4     
==========================================
+ Hits          902      912      +10     
- Misses          1        2       +1     
- Partials        3        5       +2     

Impacted Files	Coverage Δ
src/turbot/__init__.py	99.23% <76.92%> (-0.33%)	:arrow_down:

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[theastropath]

Merged, although it apparently is case-sensitive, so !info theastropath doesn't work but !info TheAstropath does

[lexicalunit]

Noted! Made an issue for it: https://github.com/theastropath/turbot/issues/112