Implements #263 reconstruction scaling

Closes #263

See merge request nicolas.pope/ftl!190

Resolves #260 scene recording

Closes #260

See merge request nicolas.pope/ftl!189

Implements #261 recon transforms

Closes #261

See merge request nicolas.pope/ftl!188

Resolves #256 Net config refresh

Closes #256

See merge request nicolas.pope/ftl!187

Implements #258 and implements #259 multi group

Closes #258 and #259

See merge request nicolas.pope/ftl!186

Reconstruction now supports multiple groups until rendering. This means
that the scene_A and scene_B variables are now vectors. To support this
change, a bug was fixed in configuration.cpp. Previously, instead of
adding multiple paths, the configure() method simply added the same path
multiple times. Now all paths are correctly added to the configuration.

Holoportation blue tint effect

See merge request nicolas.pope/ftl!185

Implements #257 merger app

Closes #257

See merge request nicolas.pope/ftl!184

Implements #255 discon support window

Closes #255

See merge request nicolas.pope/ftl!183

Implements #204 pause to use config

Closes #204

See merge request nicolas.pope/ftl!182

Implements #240 custom shortcuts

Closes #240

See merge request nicolas.pope/ftl!181