Source maps

[i582]

Initial implementation for source map from Fift assembly file from FunC

At the time when decompiling we get function names like ?fun_HASH_0_to_16, but we would like to see the real names, like in the original FunC code.

For this we add a new function obtainSourceMap which takes the path to the original .fif file.
To get the HASH -> name mapping we run the Fift compilation passing the contents of not just a .fif file, but a special version of Asm.fif + our .fif file. With this changes in Asm.fif, Fift compiler prints the name and hash of each function to stdout during compilation, which we then transform into a source map.

This map then passed to AssemblyWriter.write() for actual use:

const program = disassembleRoot(source, {computeRefs: true})
const sourceMap = await obtainSourceMap("./Jetton_JettonMinter.code.fif") // source of info
const res = AssemblyWriter.write(program, {sourceMap})
console.log(res)

Towards #46

[novusnota]

Leftovers from concatenating Fift libraries into this big amalgamation

[anton-trunov]

If it's just a concatenation of some existing Fift files, let's create a script to do that concat and put all those files separately. Also, add the links to the original Fift files (including commit info), so it's reproducible