Expanded CrateDB keyword list

[autophagy]

Extracted the keywords from https://crate.io/docs/reference/sql/sql.html and from https://crate.io/docs/reference/sql/reference/lexical_structure.html#key-words-and-identifiers

[coveralls]

Coverage remained the same at 81.226% when pulling e00bbef on mika/expandedKeywords into 980778c on master.

[codecov-io]

Codecov Report

Merging #176 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #176   +/-   ##
=======================================
  Coverage   81.17%   81.17%           
=======================================
  Files          16       16           
  Lines        1865     1865           
=======================================
  Hits         1514     1514           
  Misses        351      351

Impacted Files	Coverage Δ
src/crate/crash/repl.py	52.3% <ø> (ø)	✅

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[coveralls]

Coverage remained the same at 81.287% when pulling b5e1869 on mika/expandedKeywords into fd4334c on master.