OOP = more tables

Added step to overwrite medicaid responses based on earliest response
where medicaid was reported (so if report yes in n2 interview, also set
to yes n1 and exit ivw)
Simplified how 60m, 24m variables are filled in
Added n1 interview wealth variables to quartile tables
Added table demo characteristics by disease group
Added hospital nights to 2 year table
Added 2 year dementia vs all other table
Misc codebook updates