cmake fixes

Findgnss_utils.cmake

-FIND_PATH(
-    gnss_utils_INCLUDE_DIRS
-    NAMES gnss_utils/gnss_utils.h
-    PATHS /usr/local/include/iri-algorithms)
-IF(gnss_utils_INCLUDE_DIRS)
-  MESSAGE("Found gnss_utils include dirs: ${gnss_utils_INCLUDE_DIRS}")
-ELSE(gnss_utils_INCLUDE_DIRS)
-  MESSAGE("Couldn't find gnss_utils include dirs")
-ENDIF(gnss_utils_INCLUDE_DIRS)
-
-FIND_LIBRARY(
-    gnss_utils_LIBRARIES
-    NAMES libgnss_utils.so libgnss_utils.dylib
-    PATHS /usr/local/lib/iri-algorithms)
-IF(gnss_utils_LIBRARIES)
-  MESSAGE("Found gnss_utils lib: ${gnss_utils_LIBRARIES}")
-ELSE(gnss_utils_LIBRARIES)
-  MESSAGE("Couldn't find gnss_utils lib")
-ENDIF(gnss_utils_LIBRARIES)
-
-IF (gnss_utils_INCLUDE_DIRS AND gnss_utils_LIBRARIES)
-   SET(gnss_utils_FOUND TRUE)
-   SET(gnss_utils_INCLUDE_DIR ${gnss_utils_INCLUDE_DIRS})
-   SET(gnss_utils_LIBRARY ${gnss_utils_LIBRARIES})
- ELSE(gnss_utils_INCLUDE_DIRS AND gnss_utils_LIBRARIES)
-   set(gnss_utils_FOUND FALSE)
-ENDIF (gnss_utils_INCLUDE_DIRS AND gnss_utils_LIBRARIES)
-
-IF (gnss_utils_FOUND)
-   IF (NOT gnss_utils_FIND_QUIETLY)
-      MESSAGE(STATUS "Found gnss_utils: ${gnss_utils_LIBRARIES}")
-   ENDIF (NOT gnss_utils_FIND_QUIETLY)
-ELSE (gnss_utils_FOUND)
-   IF (gnss_utils_FIND_REQUIRED)
-      MESSAGE(FATAL_ERROR "Could not find gnss_utils")
-   ENDIF (gnss_utils_FIND_REQUIRED)
-ENDIF (gnss_utils_FOUND)