Add support for writing ignore comment in Lua

[ThibF]

Overview Description

Lua is not supported for ignore comments.

Steps to Reproduce

1. Create a lua file with ignore comment

-- Start Ignore LuaFormatterBear
print ( "Hello World"      )
-- Stop Ignore LuaFormatterBear

2. Add a .coafile

[lua]
files = **.lua
tags = lua
[lua.format]
bears = LuaFormatterBear

3. Run coala

Actual Results

The lua code inside the Start Ignore and Stop Ignore is formatted by coala

Expected Results

The lua code inside the Start Ignore and Stop Ignore is ignored by coala

Additional Information:

In lua, single line comments sign is -- and multiline comments are:

--[[
print(10)         -- no action (comment)
--]]

[RajSrinivasJena]

I'm taking this

[codehobbyist06]

I could not find any LuaFormatterBear available for Lua language(don't know if it existed in previous versions). The bear available is LuaLintBear, and it works fine if Luacheck is installed. You can install Luacheck using the following commands:
sudo apt install luarocks
sudo luarocks install luacheck

To check if it is installed correctly:
luacheck -v

Pls share if there is something else in this issue.