Fixed issue 19

[AliabbasMerchant]

I have added the feature, so that if the line ends with \, it takes it as a multiline statement, and allows the user to continue in the next line.
Tagging @MartinNowak @wilzbach

[rikkimax]

That backslash to say "multiline" is pretty common i.e. https://jameshfisher.com/2016/11/30/c-multiline-literal/