Allow hot change in deal config on boost

What's required:

```
$ lotus-miner storage-deals selection --help
NAME:
lotus-miner storage-deals selection - Configure acceptance criteria for storage deal proposals

USAGE:
lotus-miner storage-deals selection command [command options] [arguments...]

COMMANDS:
list List storage deal proposal selection criteria
reset Reset storage deal proposal selection criteria to default values
reject Configure criteria which necessitate automatic rejection
help, h Shows a list of commands or help for one command

OPTIONS:
--help, -h show help (default: false)
```

and the below one. (I would prefer not to implement this in boost and let retrieval filter take care of that.

```
$ lotus-miner storage-deals
NAME:
lotus-miner storage-deals - Manage storage deals and related configuration

USAGE:
lotus-miner storage-deals command [command options] [arguments...]

COMMANDS:
set-blocklist Set the miner's list of blocklisted piece CIDs
get-blocklist List the contents of the miner's piece CID blocklist
reset-blocklist Remove all entries from the miner's piece CID blocklist
```