Implemented SetCursor for most of the available MacOS cursors.#1

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raff wants to merge 2 commits intoultralight-ux:masterfrom raff:master

+113-4

Commits on Jun 12, 2019

Implemented SetCursor for most of the available MacOS cursors. See ultralight-ux/Ultralight#133
raff
committed

Commits on Oct 15, 2019

Merge remote-tracking branch 'upstream/master'
raff
committed