src/CharmBypass-{Bold,Regular}.sfd: move up out of src

These are the last remaining files in the src/ directory. Move them to
the top level with everything else so that we can simplify the build
rules a bit.

diff --git a/src/CharmBypass-Bold.sfd b/CharmBypass-Bold.sfd
similarity index 100%
rename from src/CharmBypass-Bold.sfd
rename to CharmBypass-Bold.sfd

diff --git a/src/CharmBypass-Regular.sfd b/CharmBypass-Regular.sfd
similarity index 100%
rename from src/CharmBypass-Regular.sfd
rename to CharmBypass-Regular.sfd