replace old DE semaphore Sh0 (dwarf) by a new icon
replace old icon DE Sh (normal size) by a new one (showing Sh1)
replace light signal DE Sh0 and Sh1 by new icons
DE Sh0 (light dwarf): #ffffff instead of original color, larger light circle
Merge pull request #78 from Nakaner/new-sh-signals

Added new icons of german minor signals type Sh