arrow

ARROW-11982: [Rust] Donate Ballista Distributed Compute Platform

This PR contains a donation of the Ballista Distributed Compute platform.

We need to meet the following conditions before merging this PR:

1. Pass a vote on the Arrow dev@ mailing list (Completed on 3/25/2021)
2. Pass the IP clearance process

This PR is based on the contents of Ballista main branch at commit hash [9373241314bb9b01c639aa51c92159611fa42d3e](https://github.com/ballista-compute/ballista/commit/9373241314bb9b01c639aa51c92159611fa42d3e) and contains work from the following contributors:

```
$ git shortlog -n -s -- rust

231  Andy Grove
 27  Ximo Guanter
  7  QP Hou
  6  Boaz Berman
  5  Daniël Heres
  4  Jack Chan
  4  Patrick More
  3  Ben Cohen
  3  Hendrik Makait
  3  Jorge Leitao
  2  Hamish Nicholson
  2  Tanapol Prucksakorn
  1  Andrew Fitzgerald
  1  Dyqer
  1  Enrico Risa
  1  Jeremy Mei(梅杰)
  1  K.I. (Dennis) Jung
  1  Kyle Prifogle
  1  Matthijs Brobbel
  1  Nikita Lapkov
  1  Sieu TSoi
  1  Son
  1  Viktor Gal
  1  Yeshwanth Kumar
  1  jschmitz28

$ git shortlog -n -s -- dev
    45  Andy Grove
     3  Ximo Guanter
     2  Jorge Leitao

$ git shortlog -n -s -- docker
    30  Andy Grove
     6  Ximo Guanter
     2  Daniël Heres
     1  Ben Sully
     1  Hamish Nicholson
     1  Jorge Leitao
     1  Rick Richardson

$ git shortlog -n -s -- docs
    37  Andy Grove
     2  K.I. (Dennis) Jung
     1  Hamish Nicholson
     1  Jorge Leitao
     1  Ximo Guanter
```

Closes #9723 from andygrove/donate-ballista

Authored-by: Andy Grove <andygrove73@gmail.com>
Signed-off-by: Andy Grove <andygrove@nvidia.com>