Move everything from config to configparser (#2796)

Signed-off-by: Bogdan Drutu <[email protected]>

Author: bogdandrutu

config/config.go renamed to config/configparser/config.go

@@ -15,7 +15,7 @@
 // Package config implements loading of configuration from Viper configuration.
 // The implementation relies on registered factories that allow creating
 // default configuration for each type of receiver/exporter/processor.
-package config
+package configparser
 
 import (
 	"errors"

config/config_test.go renamed to config/configparser/config_test.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package config
+package configparser
 
 import (
 	"os"