[BUG] Support of bitwise operators

[edkashinsky]

I tried to obfuscate a code with bitwise operators and looks like it doesn't work. For example:

• bitwise OR local a = 10 * 2 ^ 16 | 2
• bitwise AND local b = 10 & 0xFF
• bitwise shift local c = 10 << 8 * 16 >> 16
• bitwise XOR local d = 2 ~ 4

It would be really nice, if you add support for them. Thank you in advance!

I know that this syntaxis was created in Lua 5.3 and you support only 5.1, but anyway it will be nice to support new syntaxis