DIRECTOR : Fix physical energy game bar not filled in total distortion.

[kartiksharmakk]

It is partial revert of 3cb61c5

Steps to reproduce:

1. Start Total Distortion
2. Start a new game / load game
3. Click on the "Options" button
4. The physical energy bar is not visible

Trello card : https://trello.com/c/mpZTlPoZ/628-physical-energy-game-bar-not-filled

[coderabbitai]

Walkthrough

Walkthrough

The changes across the files pertain to the handling of a blend property in the Director engine's rendering system. A new _blend member has been introduced to the Sprite class and is now being used in the Channel class methods to determine plot data and mask conditions. Additionally, the Frame class's function for formatting channel information has been updated to include the blend value in its output.

Changes

Files	Change Summary
engines/director/sprite.h engines/director/sprite.cpp	Added a new _blend member variable to the Sprite class and updated constructors and assignment operators to handle it.
engines/director/channel.cpp	Modified Channel::getPlotData to use _blend instead of _blendAmount and updated Channel::getMask to check _sprite->_blend for blend condition.
engines/director/frame.cpp	Updated Frame::formatChannelInfo to include the blend value in the output string.

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[sev-]

As it was rightfully pointed out by @moralrecordings, this effectively breaks blending in the engine. Thus, switching this PR to draft until the problem is properly detected and addressed.

[sev-]

Thank you!