Add script for adding missing compilerOptions to tsconfig schema

[cspotcode]

This is a script I wrote for sending PRs to SchemaStore to add missing compilerOptions. It's not strictly related to ts-node, but we already have a vested interest in making the schema good and usable, so I'm hoping no one objects to me keeping it here.

[codecov]

Codecov Report

Merging #1107 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1107   +/-   ##
=======================================
  Coverage   75.49%   75.49%           
=======================================
  Files           7        7           
  Lines         657      657           
  Branches      148      148           
=======================================
  Hits          496      496           
  Misses        107      107           
  Partials       54       54           

Flag	Coverage Δ
#node_10	72.15% <ø> (ø)
#node_12_15	72.34% <ø> (-0.19%)	⬇️
#node_12_16	72.53% <ø> (ø)
#node_13	75.19% <ø> (ø)
#node_14	75.19% <ø> (ø)
#typescript_2_7	75.03% <ø> (ø)
#typescript_latest	74.27% <ø> (ø)
#typescript_next	74.12% <ø> (ø)
#ubuntu	75.19% <ø> (ø)
#windows	75.34% <ø> (ø)

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[coveralls]

Coverage increased (+1.0%) to 83.175% when pulling 9c00353 on ab/tsconfig-schema-scripts into 145190d on master.