Pattern resize works inconsistently

[cibomahto]

Patterns are automatically resized to fit the height of the fixture. Unfortunately the way this is implemented is not consistent. To repeat:

1. From welcome screen, select blinkytape configuration and load sample patterns
2. Resize fixture to have height 475
3. Patterns will be stretched vertically but not horizontally
4. load cylon example
5. Newly loaded cylon pattern will be stretched both vertically and horizontally

Should probably implement a better scene configuration tool to really fix this

[cibomahto]

The scaling is indeed implemented through different paths.

The resize that occurs when loading a new pattern is handled through pattern::load():

PatternPaint/src/libblinky/pattern.cpp

Line 66 in 8a51d0f

bool Pattern::load(const QString &newFileName)

The reisze that occurs through changing a scene is handled through Pattern::sresize():

PatternPaint/src/app/gui/mainwindow.cpp

Line 864 in 8a51d0f

pattern->resize(newDisplaySize, false);

PatternPaint/src/libblinky/pattern.cpp

Line 191 in 8a51d0f

void Pattern::resize(QSize newSize, bool scale)

Unfortunately, the 'scale' parameter is not implemented, so that's probably where to start.