fix: add support for experimentalDecorators and emitDecoratorMetadata from tsconfig.json

[rustyconover]

Add support for two additional ts flags from tsconfig.json.

[salesforce-cla]

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[codecov]

Codecov Report

Merging #97 into master will decrease coverage by 66.81%.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           master   #97       +/-   ##
========================================
- Coverage   66.81%    0%   -66.82%     
========================================
  Files           7     2        -5     
  Lines         452    12      -440     
  Branches      127     3      -124     
========================================
- Hits          302     0      -302     
+ Misses        101    12       -89     
+ Partials       49     0       -49

Impacted Files	Coverage Δ
src/index.ts	0% <0%> (-100%)	⬇️
src/debug.ts	0% <0%> (-45.46%)	⬇️
src/util.ts
src/plugin.ts
src/config.ts
src/command.ts

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[AuHau]

This would be very welcomed because without this it is not possible to use oclif for application which uses decorators.

[RasPhilCo]

🏄 would love to see your cli using this if you feel like sharing a link

[AuHau]

Nice! Thanks :-)

I am wrapping web-server which uses https://github.com/RobinBuschmann/sequelize-typescript for model definitions.

Not sure if this will make much sense for you, but here is the repo: https://github.com/rsksmart/rif-marketplace-cache

Btw. I have found workaround for this, where I run the bin/run with my instance of ts-node which uses the correct config, but this will be definitely much more user-friendly :-)