New HLCM chooser segmentation with hh with children

[tianxie1995]

run1254 Rural hh_size decline generally mitigated

• Livingston, previously with drastic changes in hh_size, now has relatively stable hh_size and hh_types
• Rural Macomb now gaining hh_size rather than losing compared to run1253
• same for rural Washtenaw, Oakland, and St. Clair

Area to improve

• Cities with larger hh_size, like Dearborn and Warren, have smaller hh_size, and less size 3+ hh