I don't know of any program to automate the entire process, but you can use the MakeHex program to create the Pronto Hex (that Logitech expects) based on information an expert, such as myself, can see in the LIRC file.

But for your Hitachi TV, you shouldn't need to do any of that. Most Hitachi TV's use a standard set of IR signals that you can easily find online in almost any format you like. I'm sure Logitech already knows that code set. The LIRC file you just posted is for that standard Hitachi TV code set.

If you did want to use MakeHex, the key information matching that LIRC file is that Hitachi TV's use NEC1 protocol with Device=80

MakeHex can generate all 256 possible function codes for NEC1 device 80. Then it is a bit tedious (but not too hard) to translate from the last two digits of each LIRC code to the function number in the list of 256 generated by MakeHex. For example:

CF -> 12
4F -> 13
8F -> 14
0F -> 15
C7 -> 28