core: Decrease updates to VdsDynamic

VdsDynamic updates are heavy on the database. This patch minimizes
these writes by fixing some issues with VdsDynamic equals method
and improving the RowMapper of VdsDynamic to include all fields. 
A future patch will move cpu_over_
commitment to VdsStatistics

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1136345
Change-Id: I30711bc02adcc6ebbcac95d609da0fbc54f49cb2
Signed-off-by: lzelkha@redhat.com <lzelkha@redhat.com>
core: Calculate Vds name from VdsStatic not VDS

Change getVdsName to use VdsStatic which loads faster
than Vds which loads slower

Change-Id: I5b5f5445c4a7b986bfb983051a850b3794d25bfe
Signed-off-by: lzelkha@redhat.com <lzelkha@redhat.com>