Display more metadata in info-window

[varenius]

From v0.19 the excellent feature of reading the SGF metadata (e.g. player's names) has been added. The function responsible is here: https://github.com/Kashomon/glift/blob/master/src/rules/properties.js#L325 While editing SGF files in the well known KGS editor, I realised there are more keywords which I find usable, and I wish these could also be displayed in the info window. I suggest the following improvements to this function:

• Show also rank of players. Ranks are given (if entered) as, for example, "WR[3d]BR[4k]" for WhiteRank=3D, BlackRank=4K. I suggest the ranks be shown in brackets after the players names.
• Show also "Event", i.e. the field EV, entered for example as "EV[9th Korea Prime Minister Cup 2014]".
• Show also the "Round", i.e. the filed RO, i.e. the round of the tournament. Entered as "RO[1]" for round=1.

I sincerely think glift is awesome and I am very grateful for the nice work already done. Please see the above as very minor suggestions if time be. Best regards, Eskil

[artasparks]

Added in 0.19.1

[varenius]

Excellent, thanks!