tools: better hlil and mlil. add comments and identation

[cybergrind]

It is an initial try to make IL representation better. This PR has only HLIL if it is ok, I can try to make the same for other representations.

I'm planning to add tool for comments, so it would be great to show comments alongside with code

What is has:

• adds function comment if it have any
• adds function definition and name at the beginning
• adds internal comments if there were any
• better do loops and maybe other constructions

Before:

0x141b42e0e: int32_t rbx = 0
0x141b42e1d: int32_t r12 = *__argc
0x141b42e2a: int64_t* r15 = *__wargv
0x141b42e43: data_141d2c2f8 = ai/get_environment_path()
0x141b42e4a: BOOL (* const var_50)(PWSTR lpName, PWSTR lpValue) = SetEnvironmentVariableW
0x141b42e4f: SetEnvironmentVariableW(u"PATH", &data_141c0567e)
0x141b42e54: ai/get_environment_path()
0x141b42e59: ai/get_python_home_path()
0x141b42e64: SetEnvironmentVariableW(u"PYTHONHOME", &data_141d2ccc0)
0x141b42e66: ai/get_python_home_path()
0x141b42e6e: SetDllDirectoryW(&data_141d2ccc0)
0x141b42e7b: int64_t* rsi = *PyImport_FrozenModules
0x141b42e81: if (rsi != 0)
0x141b42e87: int64_t* rax_1 = rsi
0x141b42e8a: if (*rsi != 0)
0x141b42e90: rax_1 = &rax_1[3]
0x141b42e98: do while (*rax_1 != 0)
0x141b42ea1: rbx = ((rax_1 - rsi) s>> 3).d * 0xaaaaaaab

After:

0x141b42df0: // probably python initialization is here
0x141b42df0: void my:maybe_init() __noreturn
0x141b42e0e:     int32_t rbx = 0
0x141b42e1d:     int32_t r12 = *__argc  // argc
0x141b42e2a:     int64_t* r15 = *__wargv
0x141b42e43:     data_141d2c2f8 = ai/get_environment_path()
0x141b42e4a:     BOOL (* const var_50)(PWSTR lpName, PWSTR lpValue) = SetEnvironmentVariableW
0x141b42e4f:     SetEnvironmentVariableW(u"PATH", &data_141c0567e)
0x141b42e54:     ai/get_environment_path()
0x141b42e59:     ai/get_python_home_path()
0x141b42e64:     SetEnvironmentVariableW(u"PYTHONHOME", &data_141d2ccc0)
0x141b42e66:     ai/get_python_home_path()
0x141b42e6e:     SetDllDirectoryW(&data_141d2ccc0)
0x141b42e7b:     int64_t* rsi = *PyImport_FrozenModules
0x141b42e7b:     
0x141b42e81:     if (rsi != 0)
0x141b42e87:         int64_t* rax_1 = rsi
0x141b42e87:         
0x141b42e8a:         if (*rsi != 0)  // sample comment
0x141b42e98:             do
0x141b42e90:                 rax_1 = &rax_1[3]
0x141b42e98:             while (*rax_1 != 0)
0x141b42e98:         
0x141b42ea1:         rbx = ((rax_1 - rsi) s>> 3).d * 0xaaaaaaab

[cybergrind]

Also added MLIL

[ttimasdf]

Thanks, this resolves #8

[ttimasdf]

I'll update the pytest snapshot to reflect the changes to these tools and add some comments to BNDB.

[cybergrind]

@ttimasdf no pressure here, this definitely can wait. also, having tests would really help, so I would love to see refactoring branch merged <3