Create Tekton Task to create bundles

[benzcash]

The bundles currently have this format:

$ tar zvtf zcash-tnb-bundle-ab2b7c0.tgz
drwxrwxr-x bwilson/bwilson   0 2020-07-09 13:46 zcash-tnb-bundle/
lrwxrwxrwx bwilson/bwilson   0 2020-07-09 13:45 zcash-tnb-bundle/zcash-testnet-miner-data-dir.tgz -> zcash-testnet-miner-data-dir-995286.tgz
lrwxrwxrwx bwilson/bwilson   0 2020-07-09 13:46 zcash-tnb-bundle/zcashd-tnb-artifacts.tgz -> zcashd-tnb-artifacts-ab2b7c0.tgz
-rw-rw-r-- bwilson/bwilson 3955684681 2020-07-09 13:30 zcash-tnb-bundle/zcash-testnet-miner-data-dir-995286.tgz
-rw-rw-r-- bwilson/bwilson  159792206 2020-07-07 14:04 zcash-tnb-bundle/zcashd-tnb-artifacts-ab2b7c0.tgz

The current deploy task will looks for the paths:

• zcash-tnb-bundle/zcash-testnet-miner-data-dir.tgz
• zcash-tnb-bundle/zcashd-tnb-artifacts.tgz

These archives are expected to have contents like:

 $ tar zvtf zcash-tnb-bundle/zcashd-tnb-artifacts.tgz
-rwxr-xr-x root/root 225719968 2020-06-25 18:08 workspace/source/src/zcashd
-rwxr-xr-x root/root  11576928 2020-06-25 18:08 workspace/source/src/zcash-cli
-rwxr-xr-x root/root 283678568 2020-06-25 18:08 workspace/source/src/zcash-gtest
-rwxr-xr-x root/root  38904392 2020-06-25 18:08 workspace/source/src/zcash-tx

and

$ tar zvtf zcash-tnb-bundle/zcash-testnet-miner-data-dir.tgz 
drwx------ 2001/root         0 2020-07-09 13:23 testnet3/
drwx------ 2001/root         0 2020-07-04 17:30 testnet3/blocks/
-rw------- 2001/root   6813657 2020-07-04 17:30 testnet3/blocks/rev00010.dat
-rw------- 2001/root 134217359 2020-07-04 17:30 testnet3/blocks/blk00005.dat
-rw------- 2001/root   6911807 2020-07-04 17:30 testnet3/blocks/rev00003.dat
<--- BIG SNIP --->
-rw------- 2001/2001   2147739 2020-07-06 19:10 testnet3/chainstate/000631.ldb
-rw------- 2001/2001   2149040 2020-07-06 22:11 testnet3/chainstate/000646.ldb
-rw------- 2001/2001    782219 2020-07-06 19:10 testnet3/chainstate/000633.ldb
-rw------- 2001/root  77590528 2020-07-09 13:22 testnet3/wallet.dat
-rw------- 2001/root         0 2020-07-04 17:30 testnet3/debug.log
-rw------- 2001/root         0 2020-07-04 17:30 testnet3/.lock
-rw------- 2001/2001    106492 2020-07-09 13:23 testnet3/peers.dat
-rw------- 2001/root     33910 2020-07-09 13:23 testnet3/fee_estimates.dat
-rw------- 2001/root         0 2020-07-04 17:30 testnet3/db.log

We should have an automated process to generate these archives and the bundles.

[benzcash]

There are already tasks to copy from for the snapshot and artifacts builds.

https://github.com/zcash-hackworks/zcash-testnet-in-a-box/blob/master/tekton/tasks/build-binary-tnb.yml
https://github.com/zcash-hackworks/zcash-testnet-in-a-box/blob/master/tekton/tasks/snapshot-gcp.yml