WIP: Mssql checks

Server Metrics
-------------------
* "ProductVersion","11.0.3128.0","string"
* "ProductLevel","SP1","string"
* "Edition","Standard Edition (64-bit)","string"

Database Metrics
-----------------------
* "state_desc","ONLINE","string"
* "recovery_model_desc","SIMPLE","string"
* "page_verify_option_desc","CHECKSUM","string"
* "state","0","int"
* "recovery_model","3","int"
* "page_verify_option","2","int"
* "physical_name","C:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\DATA\master.mdf","string"
* "size","512","int"
* "growth","10","int"