Add ihex file format support

[fluxchief]

AVR binaries are usually distributed in the intel hex format. It would be more comfortable if this plugin could directly open ihex files instead of requiring the user to do the objdump conversion prior to analysis.

[skxo]

Hi, can you tell me more about objdump conversion step please? What kind of format is originally supported by your plugin for atmel AVR please?

[fluxchief]

See this post: https://stackoverflow.com/questions/26961795/converting-from-hex-to-bin-for-arm-on-linux Any objcopy will work, you don't need avr-objcopy (or arm objcopy like in the post)

The plugin expects the raw ROM.

[skxo]

Looks great. Thanks!

[psifertex]

Can probably close this in favor of: https://github.com/toolCHAINZ/hexfiles