(PA-5790) Add zfs attribute defaultuserquota

[AriaXLi]

This commit adds the defaultuserquota attribute. On machines with zfs filesystem version 5 and older, attempting to use this attribute causes an exception/error since defaultuserquota is not a valid attribute on older zfs filesystem versions. This commit adds logic to handle and rescue that exception.

(cherry picked from commit cb3f040)

[AriaXLi]

Testing my changes on zfs adhoc:

Passed on zfs 7.x: https://jenkins-platform.delivery.puppetlabs.net/view/modules/view/Core/view/zfs_core/view/adhoc/job/forge-module_puppetlabs-zfs_core_intn-sys_nightly-puppet_agent_7.x-module_adhoc/12/

Passed on zfs main: https://jenkins-platform.delivery.puppetlabs.net/view/modules/view/Core/view/zfs_core/view/adhoc/job/forge-module_puppetlabs-zfs_core_intn-sys_nightly-puppet_agent_main-module_adhoc/15/

Before my changes, an "invalid property" error would pop up on Solaris 10 since it uses zfs filesystem version 5:

cozy-coupler.delivery.puppetlabs.net (solaris10-64-1) 21:19:55$ puppet resource zfs tstpool/tstfs
�[00;00m�[00;33m  Error: Could not run: Execution of '/usr/sbin/zfs get -H -o value defaultuserquota tstpool/tstfs' returned 2: bad property list: invalid property 'defaultuserquota'
  For more info, run: zfs help get
�[00;00m�[00;37m

After my changes, the "invalid property" error went away:

cool-pituitary.delivery.puppetlabs.net (solaris10-64-1) 22:37:43$ puppet resource zfs tstpool/tstfs
�[00;00m�[00;33m  zfs { 'tstpool/tstfs':
    ensure           => 'present',
    aclinherit       => 'restricted',
    aclmode          => 'discard',
    acltype          => '-',
    atime            => 'on',
    canmount         => 'on',
    checksum         => 'on',
    compression      => 'off',
    copies           => '1',
    dedup            => 'off',
    defaultuserquota => '-',
    ...

The property can be used on Solaris 11 though since it uses a newer version of zfs (version 6):

15:29:44 olive-motif.delivery.puppetlabs.net (solaris114-64-1) 22:29:44$ puppet resource zfs tstpool/tstfs
15:29:44   zfs { 'tstpool/tstfs':
15:29:46     ensure           => 'present',
15:29:46     aclinherit       => 'restricted',
15:29:46     aclmode          => 'discard',
15:29:46     acltype          => '-',
15:29:46     atime            => 'on',
15:29:46     canmount         => 'on',
15:29:46     checksum         => 'on',
15:29:46     compression      => 'off',
15:29:46     copies           => '1',
15:29:46     dedup            => 'off',
15:29:46     defaultuserquota => 'none',
...