#116 structs expand when debugging even if they were previously collapsed

[Isaac]

when debugging some code and visualizing some variables in the watcher, the mmbers of structures are expanded automaticaly, even of they were previously colapsed.

[SilverNexus]

From ticket #111:
"I have changed the behaviour to always expand everything when updating. Given enough time, I'll implement expansion state persistence."
-- orwelldevcpp

This should be only temporary. It was a response to my complaint that the debugger always collapsed variables, and should be fully fixed soon.

[orwelldevcpp]

Modified behaviour so that the top level fold state is remembered, while children will be folded. When a variable is watched for the first time, only the top level fold is expanded, while children are left collapsed.