Also fixes broken images/timeInStage bugs.

Hanako and Kamina dialogue update

See merge request spnati/spnati.gitlab.io!1351

Add sexual orientation to player tag dialog.

See merge request spnati/spnati.gitlab.io!1350

Update behaviour.xml

See merge request spnati/spnati.gitlab.io!1349

Would it be possible for the CE to not auto-populate stage #s for stage-generic images like blanks?

Add datalist for character sources and add tag search to group filter modal.

See merge request spnati/spnati.gitlab.io!1327

Cupid Meia Update 2

See merge request spnati/spnati.gitlab.io!1348

Replies to Streaming-chan's lines

Natsuki minor posename consolidation for two unique poses.

Adds a new system to Ochako for female players (epilogue+image update forthcoming)

Nmasp character interviews+responses+various bugfixes

These should've been lumped in with the previous update, but I forgot to stage
them...

Character Editor 3.5

See merge request spnati/spnati.gitlab.io!1346

Cupid Meia Update 1

See merge request spnati/spnati.gitlab.io!1347

Adds new targeted lines toward Chihiro, Coco, and Croix.

also new operators for ExpressionTest

Make Nagisa's maid costume part of the Valentines set so that it is actually used.

See merge request spnati/spnati.gitlab.io!1345

Nagisa's alt has been added, so she can hang out at the front of the roster, like all the other Valentine characters!

Fix forced alternate costume issues

See merge request spnati/spnati.gitlab.io!1344

Nagisa's adorable outfit is by UnderscorM3

A huge thank you to Patisdom for adapting Nagisa's poses to this outfit for stages 2, 3, 4, and 5!

* Use selection_image in opponent selection quads.
* Keep costume selection. Only unload selected alternate costume if another costume is selected (including default).
* Apply forced selection by calling .selectAlternateCostume() when Opponent object is instantiated instead of doing that when loading behaviour.xml and only setting selection_image upon instantiation.
* Initialize costume members in Opponent() rather than Player() since Opponent() doesn't call Player().

Note that selected_costume is the selection on the selection screen (the costume folder name) and alt_costume is the object containing metadata of the loaded costume. We need to add the costume base folder to that object to be able to know if the player has selected a different costume.