Blender Git Loki

Patch [#24763] NLA Track & Strip methods
Submitted by: Dan Eicher (dna)

<quote>
Adds:

AnimData.nla_tracks.new(prev)
* (optional) prev -- add new track after this track

AnimData.nla_tracks.remove(track)

AnimData.nla_tracks.active(track)
* (optional) track -- track to set active
* returns active track

NlaTrack.strips.new(name, start, action)
NOTE: fails if the strip can't fit in the track as opposed to the
operator which will create a new track and add the strip to that.
* name -- name for new strip
* start -- start frame of new strip
* action -- action to assign to strip

NlaTrack.strips.remove(strip)
</quote>

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I've resolved the issue (noted in the original patch) regarding the
validation of the created strip by creating and using a "dummy
AnimData" block to solve the missing dependencies.