Perform basic system health checks from the client
perspective. Checks the following:

  * Client/Server versions
  * Key library versions and paths
  * Connected sytem information
  * Pool status for all pools to which the user
    has access
  * Container status for all containers in the
    checked pools

Change-Id: I9154ee7f3632996e0e67ad6f320874e1df2e0d23
Signed-off-by: Michael MacDonald <mjmac@google.com>

The commit landed for DAOS-16127 resulted in some differences in
JSON output for pool query. Several tests were written in such a
way that the code expected the (en|dis)abled_ranks keys to always
be set, even if those arrays were NULL. This isn't very idiomatic
and is awkward to work with. The test code has been updated to
instead use the get() operator which will return None if the
response dict does not have the requested key.

Also fixes a problem reported in DAOS-16283, where the JSON output
of `dmg pool query` differed from the JSON output of `daos pool query`
because it didn't include the usage array.

Features: pool control
Required-githooks: true
Change-Id: I4b69ed55ce6df8b3122573b4c7df8f2118a57d1b
Signed-off-by: Michael MacDonald <mjmac@google.com>

Apparently these are needed on Ubuntu.

Features: control pool
Required-githooks: true
Change-Id: Ieb0446760f0b53e2f09feeae0226ea26dd455d58
Signed-off-by: Michael MacDonald <mjmac@google.com>