Use consistent naming of components

Rename "pvcd" to "pvcnoded", and "pvc-api" to "pvcapid" so names for the
daemons are fully consistent. Update the names of the configuration
files as well to match this new formatting.

References #79

gen-api-doc.py

@@ -8,11 +8,11 @@ import os
 import sys
 import json
 
-os.environ['PVC_CONFIG_FILE'] = "./api-daemon/pvc-api.sample.yaml"
+os.environ['PVC_CONFIG_FILE'] = "./api-daemon/pvcapid.sample.yaml"
 
 sys.path.append('api-daemon')
 
-pvc_api = __import__('pvc-api')
+pvc_api = __import__('pvcapid')
 
 swagger_file = "docs/manuals/swagger.json"