implemented batch processing of file.
optimized logs to only show when the verbose flag is used.
added docstring documentation.
png processing not fully supported yet.
implemented single file processing and recursive processing of file within a folder based on the extension provided in the -ext flag.
implemented cli command for displaying metadata.
implemented human readable format for display metadata value.
refactored and moved png and jpg metadata processor logic to the core dir.
implemented logging with -v(verbose flag)
HERITAGE-XION