Add Language support for AWS Locations service

[noma4i]

This change will use language option from the config. Example:
language: :en
Before this PR:

  label = "ทางหลวงชนบทภก. 4018 ตำบลเชิงทะเล อำเภอถลาง จังหวัดภูเก็ต 83110",
  municipality = "ตำบลเชิงทะเล",
  postal_code = "83110",
  region = "จังหวัดภูเก็ต",
  sub_region = "อำเภอถลาง",

after:

  label = "Phuket 4018 Rural Rd, Choeng Thale, Thalang, Phuket 83110, THA",
  municipality = "Choeng Thale",
  postal_code = "83110",
  region = "Phuket",
  sub_region = "Thalang",

[alexreisner]

This looks good, thanks. Just one nitpicky thing: could you move the new code 4 lines down, rather than breaking up the two statements that deal with Aws::ParamValidator?

[noma4i]

@alexreisner done