eval: get other HT benchmarks from growt codebase

[tjhu]

• General insert/find hashtable benchmarks

  • kvstore
  • [ ] CasHT++
  • [ ] PartitionedHT
  • [ ] Folklore(growt), use this script
  • [ ] Bolt

• [x] #22

• K-mer counting benchmarks

  • kvstore
  • [ ] CasHT++
  • [ ] PartitionedHT
  • [ ] Kmerind