Config option to set package.path for require

[Derpius]

Context

• In our projects we generally keep all of the sourcecode within a src directory of the package
• We use luabundler which allows setting the require search path(s)
• We set this to be within the src directory so we only have to do folder.file and not src.folder.file
• It would be nice to set this with a Lest config option, although you can just overwrite LUA_PATH
• Lua's documentation for package.path

Scope

• Add a new configuration option called requireSearchPaths which should be an array of strings
• Before running the tests, concatenate these strings with ; per the documentation above
• Assign the new string to package.path

Acceptance Criteria

• When running tests without defining requireSearchPaths, package.path is not modified
• When running tests with requireSearchPaths, package.path is set to those elements concatenated with ;