Refactored networking layer using Moya

[mcousillas6]

Description:

Refactored the networking layer using Moya as a layer on top of Alamofire:

• Added ApiService protocol and BaseApiService Class, which implement default behavior for making http requests (custom decoding, error handling, logging, etc.)
• Added TargetType+Base extensions to Moya`s own Target type to have default headers, base URL path and some helpers for body params.
• Refactored login and logout calls to show how the new implementation works on UserResource (api spec) and UserService (the actual api calls)

• Added default custom decoding for errors with the APIError struct to try and decode standard rails error structures.

Notes:

• I didn't remove any of the old files for now, if we decide to go through with these changes, i'll remove them, and update the rest of the codebase.

[mcousillas6]

@glm4 Moya has multipart and base64 uploads already implemented, we would need to update those to use moya's instead of the custom ones that we have now

[glm4]

@glm4 Moya has multipart and base64 uploads already implemented, we would need to update those to use moya's instead of the custom ones that we have now

Sounds good! 🙌

[toptierlabs]

	1 Warning
:warning:	Be careful, maybe this PR it’s too big

Generated by :no_entry_sign: Danger

[CamilaMoscatelli]

Nice work! Looks very good :clap: