sniffles: add version 1.0.7 (#7004)

var/spack/repos/builtin/packages/sniffles/package.py

@@ -31,6 +31,7 @@ class Sniffles(CMakePackage):
     homepage = "https://github.com/fritzsedlazeck/Sniffles/wiki"
     url      = "https://github.com/fritzsedlazeck/Sniffles/archive/v1.0.5.tar.gz"
 
+    version('1.0.7', '83bd93c5ab5dad3a6dc776f11d3a880e')
     version('1.0.5', 'c2f2350d00418ba4d82c074e7f0b1832')
 
     # the build process doesn't actually install anything, do it by hand