Use LIB_ID instead of wxString for storing the library symbol information
in the schematic symbol in preparation for the upcoming symbol library table
implementation.
Change the FindLibAlias and FindLibPart functions in the PART_LIBS object
instead of wxString. Please note that only the library ID name is used to
search the list of libraries. The library nickname is ignored. Once the
symbol library table is implemented and full LIB_IDs are defined, the
library search code will no longer be used and will only be kept to load
older schematics that have not been converted.
Move SCH_LEGACY_PLUGIN_CACHE definition so that the legacy plugin knows
how to properly delete the cache object.
* coding standard fixes
* library part not library component (no such thing as a library component)
* string concatenation fix
* and an inline harmless debug/dump function
Libraries have been 100% case-sensitive for a while now; there is no longer a
need to keep this option around. This will change nothing except for any
stragglers still manually specifying this old option.
* Add sheet number that is set by schematic file load order. This duplicates
the previous SCH_SHEET_PATH behavior.
* Uncouple SCH_REFERENCE and SCH_REFERENCE_LIST from SCH_SHEET_PATH.
* Add - operator to SCH_SHEET for comparison purposes. This duplicates the
behavior of SCH_SHEET_PATH::Cmp().