Added Protocol Mapper back to lib_use_cases and removed Platform Mapper

docs/user/lib_use_cases.md

@@ -25,7 +25,7 @@ Functions are grouped with like functions, such as IP or MAC address based funct
 - OS Version - Provides the ability to work with OS version, such as defining an upgrade path.
 - Password - Provides the ability to compare and encrypt common password schemas such as type5 and type7 Cisco passwords.
 - Ping - Provides the ability to ping, currently only tcp ping.
-- Platform Mapper - Provides custom parsers for breakdown of OS Software Versions/Revisions.
+- Protocol Mapper - Provides a mapping for protocol names to numbers and vice versa.
 - Regex - Provide convenience methods for regex to be used in Jinja2.
 - Route - Provides the ability to provide a list of routes and an IP Address and return the longest prefix matched route.
 - Time - Provides the ability to convert between integer time and string times.