[Cherry pick] Add the ability to set locale for top and bottom banner views

[kried]

Description

Cherry pick of #4595 into 2.18

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (7f02db2) 60.58% compared to head (090b7f8) 60.59%.
Report is 1 commits behind head on release-v2.18.

@@              Coverage Diff               @@
##           release-v2.18    #4602   +/-   ##
==============================================
  Coverage          60.58%   60.59%           
==============================================
  Files                189      189           
  Lines              21249    21249           
==============================================
+ Hits               12874    12876    +2     
+ Misses              8375     8373    -2     

Files	Coverage Δ
.../MapboxNavigation/BottomBannerViewController.swift	73.21% <100.00%> (ø)
...rces/MapboxNavigation/InstructionsBannerView.swift	80.85% <100.00%> (ø)
...ces/MapboxNavigation/TopBannerViewController.swift	25.64% <100.00%> (ø)

... and 1 file with indirect coverage changes