Add source-code-pro fonts
See #137 (closed) and #133 (closed)
Seems to be working though haven't checked if it indeed gets set as the default monospace font yet.
[6366a590@sdk.bst:/]$ fc-match -s 'Source Code Pro'
SourceCodePro-Regular.ttf: "Source Code Pro" "Regular"
Edited by Jordan Petridis