Many of the Python table views are using identical (or nearly identical)
table templates. This patch adds a common template and makes it the
default for a DataTableView, which allows us to remove many similar
templates and redundant lines of code.
Change-Id: I1e4e15e695ee1f21f4d44f141a854e30f1e567a1
Closes-Bug: 1653986
Now system administrators have CRUD abilities to manage floating IP.
1.floating IP list table
2.allocate floating IP to specific tenant
3.release/delete floating IP
Partially implements blueprint: manage-ips
Partially implements blueprint: syspanel-floating-ip-list
Change-Id: Ie5ec59740887d3845b933b37e6e875dbf08a4918