[fuel] IA: Add PXE/admin static IPs

[fuel] IA: Add PXE/admin static IPs

- check-jinja2.sh: Add template dir to include dirs;
- add param definitions for PXE/admin static IP for each machine,
  moving MaaS DHCP range start after the new addresses, similar to
  public network;
- drop 'opnfv_' prefix for compute parameters;
- drop 'opnfv_jump_bridge_*' variables (deprecated);
- drop 'opnfv_infra_maas_*' variables, handled directly in Fuel now;
- add 'opnfv_net_*_mask' for all used networks in idf.net_config;
- move all internal j2 variables to net_map.j2, so we can reuse them
  without pod_config;
- refactor maas variables into a full `maas.region.machines` section
  when baremetal nodes are defined;
- drop 'openstack_compute_*' reclass params in favor of direct
  expansion in reclass.storage definitions via j2 in Fuel@OPNFV;
- add `net_macros.j2` for reclass linux.network reclass generation;
- move all non-sensitive reclass parameters to Fuel@OPNFV;

Change-Id: I495c6072d845b273b6607d45dc5152ec4ee767cf
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>