Fix #17 by enumerating name attributes for indicators

[CasperGN]

Ref #54

• Create enumeration function as modular
• Gather a list of default credentials
• Add protocol support for below mentioned table
• Implement protocol login for included types

Included:

Server type	protocol	Done
Active Directory	ldap	Yes
Active Directory	winrm	No
Active Directory	rpc	Yes
Active Directory	smb	Yes
ftp	ftp	No
mssql	winrm	No
mssql	smb	Yes
mssql	rdp	No
smtp	winrm	No
smtp	smb	Yes
smtp	rdp	No
smtp	smtp	No

[CasperGN]

package uploaded with current changeset at pypi-test:

python -m pip install -i https://test.pypi.org/simple/ ActiveDirectoryEnum==0.4.9.post1 --no-deps --user

[CasperGN]

Rest is handled in #59