Adding TS types to d2/arrays/bisect.ts

  - TODO: Need to add support in RefScript to:

    f :: ` arrow type `

    f.length = { number | v = `the number of arguments of f` }
ii
Merge branch 'master' of github.com:UCSD-PL/rs-benchmarks

Conflicts:
	d3/src-ts/arrays/ascending.ts
Adding some more TS types to d3/arrays.

  - Main problem now: dynamic checks on number of args