Support for base profile

[FALLAI-Denis]

When creating a zftp profile, the options "user", "password", and to a lesser extent "host", (but not "port"), are required.
This is not compatible with the use of a base profile.

Tested with @zowe/zos-ftp-for-zowe-cli version 1.2.0.

zowe profiles create zftp FTP1

Syntax Error:
Missing Required Option:
--host (-H)

Option Description:
The hostname or IP address of the z/OS server to connect to.

Syntax Error:
Missing Required Option:
--user (-u)

Option Description:
Username for authentication on z/OS

Syntax Error:
Missing Required Option:
--password (-p,--pass,--pw)