Add base testing set of names for load-names benchmark

This was generated from dnsperf queryfile with following script:

    #!/usr/bin/env python3
    names = {}

    import sys

    i = 0
    for line in iter(sys.stdin.readline, ''):
	name = line.rstrip('\n')
	if not name in names:
	    names[name] = line
	    print(f"{i},{name}")
	    i += 1
	if i >= 1024*1024:
	    break

.reuse/dep5

@@ -170,6 +170,7 @@ Files: **/.clang-format
        doc/misc/options
        doc/misc/rndc.grammar
        sonar-project.properties
+       tests/bench/names.csv
 Copyright: Internet Systems Consortium, Inc. ("ISC")
 License: CC0-1.0