Various plugins were missing the PLUGIN_EXPORT declaration with their
PluginDescriptor instantiations and lmms_plugin_main implementation
which made some plugins not show up with latest Win32 build.
(cherry picked from commit f85898ba6e)
Most files and most of the core classes and their methods have been
renamed to match new coding style conventions:
391 files changed, 25400 insertions(+), 25598 deletions(-)
Furthermore splitted some files where model and view classes were
declared or implemented together in the same file.
Should be tested thoroughly as I might have missed renaming some virtual
methods or SIGNAL/SLOT parameters.