Refactor loadbal order-options

[allmightyspiff]

slcli lb order-options takes a really long time, and produces not great output.

slcli lb order-options without arguments should just list out datacenters, and a message at the bottom letting the user know they should select a datacenter to view pricing and subnets

slcli lb order-options -d dal10 works fine, but should output 2 tables, instead of 1 table with a table in each column.

Table 1 titled " Prices", Table 2 titled " Subnets Private Subnets"

[allmightyspiff]

Current output:

$ slcli --format=table lb order-options -d dal10
Prints options for ordering
:..............................................................................................:
:                                  DALLAS10: DAL10 - Dallas                                    :
:.........................................:....................................................:
:                  Prices                 :                  Private Subnets                   :
:.........................................:....................................................:
: :..............................:......: : :.........:...................:..................: :
: :           KeyName            : Cost : : :    Id   :       Subnet      :       Vlan       : :
: :..............................:......: : :.........:...................:..................: :
: :  LOAD_BALANCER_AS_A_SERVICE  :  0   : : : 1596063 :  10.93.138.192/26 : dal10.pod03.886  : :
: :     LOAD_BALANCER_UPTIME     : .025 : : : 1301433 : 10.177.122.168/29 : dal10.pod01.1251 : :
: :   LOAD_BALANCER_BANDWIDTH    :  0   : : : 1466083 :  10.177.211.0/26  : dal10.pod01.1251 : :
: : LOAD_BALANCER_DATA_PROCESSED :  0   : : : 2340712 :  10.221.68.192/26 : dal10.pod01.777  : :
: :..............................:......: : :.........:...................:..................: :
:.........................................:....................................................:

Proposed output: (something like this anyway)