The base model is changed

The base model is changed

The base model change the libdownload-agent package to the download-provider daemon package
	modified:   CMakeLists.txt
	modified:   debian/changelog
	modified:   include/url_download.h
	modified:   include/url_download_private.h
	modified:   packaging/capi-web-url-download.spec
	new file:   sample/ipc_test.c
	modified:   src/url_download.c
	new file:   src/url_download_provider.c