How to modify .kdev4 file in script?

[Aleksey Midenkov]

I see now there is some strangely encoded multiline strings (though
IMO it would be better to make separate section for each multiline
string):

[CustomDefinesAndIncludes][ProjectPath0]
Defines=\x00\x00\x00\x00
Includes=\x00\x00\x00\x04\x00\x00\x00`\x00/\x00h\x00o\x00m\x00e...
Path=.

How to properly decode and encode them with bash/perl script?