Update to meson build to match cmake build

This merge request updates the naming of the package in the meson build changed to lowercase to match the convention of lower case library names.

In addition, installation of the header files required by other programs/ libraries has also been added and Frv.h has been added to the list of header files.

src/meson.build

@@ -14,6 +14,7 @@ sources = [
   ]
 
 headers = [
+  'Frv.h',
   'FrvCopy.h',
   'FrvMath.h',
   'FrvFFT.h',
@@ -27,6 +28,8 @@ headers = [
   'FrvCorr.h'
   ]
 
+install_headers (headers)
+
 frv_library = library(meson.project_name(), sources, headers,
   dependencies: frv_deps + frv_priv_deps, version:meson.project_version(), 
   c_args:['-DFRV_PATH="' + meson.source_root() + '"',