* Enhance DHCP functionality by adding lease time support across various components. Updated DhcpEntryCommand to include lease time, modified VmDhcpConfig to handle lease time, and adjusted related scripts and configurations to accommodate this new parameter. This allows for configurable DHCP lease durations, improving flexibility in network management.
* Move dhcp lease timeout to ConfigKey, set it to 'zone' scope, and add some tests.
* Refactor DHCP lease timeout tests to pass code standards/remove white space.
* add DhcpLeaseTimeout in getConfigKeys() method
* Apply suggestion from @weizhouapache
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Co-authored-by: Wei Zhou <weizhou@apache.org>
Detail: several scripts in the scripts directory weren't marked executable.
Normally this is handled/fixed in the packaging, but harder to deal with in
development environments, so marking them executable.
Signed-off-by: Marcus Sorensen <marcus@betterservers.com> 1358446902 -0700
