Added Client.getPlayers() call

[tjmadsen]

The getFreeAgents call is limited and doesn't allow to pull more that one page of 50 players and could more than just Free Agents. Perhaps the getFreeAgents call can be deprecated if I can also enhance the getPlayers call to have filter by position, filter by status, and configurable sorting in the future.

[codecov-commenter]

Codecov Report

Merging #171 into master will not change coverage. The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #171   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           13        13           
  Lines          181       187    +6     
  Branches        25        25           
=========================================
+ Hits           181       187    +6     

Impacted Files	Coverage Δ
src/client/client.js	100.00% <100.00%> (ø)

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