Added feature allowing use of Pimatic functions and variables in custom Player.Open commands

[SenTzu01]

Added feature allowing use of Pimatic functions and variables in custom Player.Open commands

[SenTzu01]

This also inlcudes changes from the previous pull request. only line 277 is of interest for the bugfix

[mwittig]

There is a typo in the suggested code changes: 'lenght ' should read 'length'. Besides are you sure it should be info.artist[0] which is the first character of the string or the first element of the array (if I remember correctly, the artist is given as string, but may be I am wrong). EDIT: I didn't read the commit message text. It is indicating that the artist is given as an arry in some case - do you think this this might depend on the play being used in Kodi? What did you play when the issue popped up?

[SenTzu01]

Hi Marcus,

Been a while since that request. I have corrected the typo and will resubmit. The [0] refers to the first array element if remember correctly, as during debug output I noticed an array was returned. I tested against the below OSMC version:

grep Kodi .kodi/temp/kodi.log | head -3
19:05:14.549 T:1925646848 NOTICE: Starting Kodi (17.6). Platform: Linux ARM (Thumb) 32-bit
19:05:14.549 T:1925646848 NOTICE: Using Release Kodi x32 build (version for Raspberry Pi)
19:05:14.549 T:1925646848 NOTICE: Kodi compiled Feb 7 2018 by GCC 6.3.0 for Linux ARM (Thumb) 32-bit version 4.9.30 (264478)

[SenTzu01]

Additional change to remove predicates. Will open another PR on Pimatic as the predicates have been added to core relating to AVPlayer parent class. Pimatic-Spotify also inherits this class and have a predicate collision if it is not moved up the chain.