Add support for tower's CORS middleware

[spencewenski]

Closes #47

[codecov]

Codecov Report

Attention: Patch coverage is 35.00000% with 104 lines in your changes missing coverage. Please review.

Project coverage is 44.26%. Comparing base (b860fe1) to head (50c6ca2).

Files	Coverage Δ
src/config/service/http/middleware.rs	100.00% <100.00%> (ø)
src/middleware/http/auth/jwt/ietf.rs	100.00% <ø> (ø)
src/middleware/http/auth/jwt/mod.rs	51.11% <ø> (-1.07%)	⬇️
src/middleware/http/auth/jwt/openid.rs	50.00% <ø> (-16.67%)	⬇️
src/service/http/middleware/catch_panic.rs	84.84% <100.00%> (ø)
src/service/http/middleware/compression.rs	80.30% <100.00%> (ø)
src/service/http/middleware/default.rs	100.00% <100.00%> (ø)
src/service/http/middleware/mod.rs	100.00% <ø> (ø)
src/service/http/middleware/request_id.rs	64.58% <100.00%> (ø)
src/service/http/middleware/sensitive_headers.rs	63.80% <100.00%> (ø)
... and 7 more

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