Make several properties in PhotoMessagePresenterBuilder public

[AntonPalich]

As a user you are able to make subclass of PhotoMessagePresenterBuilder, but you don't have access to several properties that was initialized using public init method.

[codecov-io]

Current coverage is 62.03%

Merging #52 into dev will not affect coverage as of 3eeda26

@@              dev     #52   diff @@
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  Files          57      57       
  Stmts        2824    2824       
  Branches        0       0       
  Methods         0       0       
=====================================
  Hit          1752    1752       
  Partial         0       0       
  Missed       1072    1072       

Review entire Coverage Diff as of 3eeda26

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