Updated project name from underscores to dashes

To facilitate the yocto recipe build, underscores in the name were replaced by dashes. This should only affect the install and package option

Author: robidev

CMakeLists.txt

@@ -7,7 +7,7 @@ if(DEFINED ENV{TOOLCHAIN})
     set(CMAKE_AR	"$ENV{TOOLCHAIN}ar" CACHE FILEPATH "CW archiver" FORCE)
 endif()
 
-project(iec61850_open_server)
+project(iec61850-open-server)
 
 ENABLE_TESTING()