Fix: support querying provider authority regardless of the hosting ap…

[vliux]

Tray's ContentProvider is currently running in app main process. But sometimes we need it to be run in another process (":service" for example). This fix allows the app developer to configure 'android:process' attribute of the Provider in manifest freely.

[codecov-io]

Codecov Report

Merging #116 into master will not change coverage. The diff coverage is 100%.

@@           Coverage Diff           @@
##             master   #116   +/-   ##
=======================================
  Coverage       100%   100%           
  Complexity      274    274           
=======================================
  Files            22     22           
  Lines           757    759    +2     
  Branches         60     60           
=======================================
+ Hits            757    759    +2

Impacted Files	Coverage Δ	Complexity Δ
...a/net/grandcentrix/tray/provider/TrayContract.java	100% <100%> (ø)	11 <0> (ø)	:arrow_down:

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