feat: Env vars and more configuration for lambdas

[ematipico]

Feature

Implements part of #10
Closes #136

Proposed Changes

[codecov]

Codecov Report

Merging #137 into master will decrease coverage by 13.46%.
The diff coverage is 76.09%.

@@             Coverage Diff             @@
##           master     #137       +/-   ##
===========================================
- Coverage   93.82%   80.36%   -13.47%     
===========================================
  Files          16       21        +5     
  Lines         243      331       +88     
  Branches       33       38        +5     
===========================================
+ Hits          228      266       +38     
- Misses         14       60       +46     
- Partials        1        5        +4

Impacted Files	Coverage Δ
src/errors/folderNotFoundError.js	20% <0%> (ø)
src/providers/aws/awsConfig.js	100% <100%> (ø)
src/providers/aws/resources/lambdaZip.js	100% <100%> (ø)
src/providers/aws/resources/lambdaPermission.js	100% <100%> (ø)
src/providers/aws/resources/gateway.js	100% <100%> (ø)
src/providers/baseProvider.js	100% <100%> (ø)
src/providers/aws/resources/gatewayMethod.js	100% <100%> (ø)
src/providers/aws/resources/gatewayResource.js	100% <100%> (ø)
src/providers/aws/resources/gatewayIntegration.js	100% <100%> (ø)
src/providers/aws/resources/lambdaProperties.js	100% <100%> (ø)
... and 16 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3004c41...e1bb98b. Read the comment docs.