* refactored logging in d2config, d2record, and d2asset
* asset manager, record manager, and file loader now utilitize d2util.Logger
* added colored logging to d2util.Logger (excluding windows platforms)
* removed mpq file verification from d2config; d2loader handles this
* record loaders now use the record manager's logger for printing info
* added command line argument for setting log level (`--loglevel 4`, `-l4`, or `-l 4`
* added `LogLevel` parameter to config file
* default log level will show errors, warnings, and info log messages
* specifying log level as an argument overrides setting from config file
* fixed log level tests
* removing objects records from d2datadict
* removing Overlay singleton from d2datadict
* remove PetTypes singleton from d2datadict
* remove PlayerClass singleton from d2datadict
* removed PlrModes singleton from d2datadict
* removed Properties singleton from d2datadict
* removed ItemQuality singleton from d2datadict
* removed RarePrefix and RareSuffix singletons from d2datadict
* removed States singleton from d2datadict
* removed Runewords singleton from d2datadict
* removed Sets and SetItems singletons from d2datadict
* remoed Shrines singleton from d2datadict
* removed UniqueItems singleton from d2datadict
* removed SuperUniques singleton from d2datadict
* removed TreasureClass singleton from d2datadict
* removed UniqueAppellation singleton from d2datadict
* removed d2datadict
* removed data dict init from d2app, this has moved to asset manager init
* move music path enumerations into d2resource
* move text dictionary (.tbl) loader into d2fileformats sub-package d2tbl
* lint fix, add doc file for d2tbl
* moved data_dictionary.go into d2fileformats sub-package d2txt, added doc file
* added sub-packages d2geom for geometry-related things, and d2path for path-related things
* moved calcstring.go to d2calculation
* move bitmuncher, bitstream, stream reader/writer from d2common into sub-package d2datautils
* fix lint errors in d2datadict loaders (caused by moving stuf around in d2common)
* move size.go into d2geom
* move d2common/cache.go into sub-package d2common/d2cache
* renamed d2debugutil to d2util, moved utility functions from d2common into d2util
* adding comments to d2interface for linter
* moved d2render renderer interfaces and types into d2interface
* fixed most lint errors for monstats loader
* de-lint d2data wip
* d2data: resolve linting errors
