image_meta_tools

This is a set of command line tools that are useful for editing image metadata. Currently it contains the following tools:
* image2xml
* xml2image
* mpo2jps
Currently supported file formats are:
* jpeg (jfif or exif)
* mpo
* jps.
These tools are mostly useful for editing metadata.
image2xml can also generate a .h header file with the offsets of different metadata in the binary file.
This could be used in small devices that generate jpeg/mpo/jps images where metadata construction from scratch is not required.