`architecture_025` has no solution message.

Environment Version 3.15.0 OS: CentOS

Describe the bug The architecture rule architecture_025 doesn't have a solution. This leads to a Traceback error when JUnit or code quality reporting is enabled.

Terminal output without JUnit or code quality reporting:

$ vsg -c my_rule.yaml -f testfile.vhd
================================================================================
File:  testfile.vhd
================================================================================
Phase 7 of 7... Reporting
Total Rules Checked: 717
Total Violations:    1
Error   :     1
Warning :     0
----------------------------+------------+------------+--------------------------------------
Rule                      |  severity  |  line(s)   | Solution
----------------------------+------------+------------+--------------------------------------
architecture_025          | Error      |          8 | None
----------------------------+------------+------------+--------------------------------------
NOTE: Refer to online documentation at https://vhdl-style-guide.readthedocs.io/en/latest/index.html for more information.

Terminal output with JUnit and code quality reporting:

$ vsg -c my_rule.yaml -f testfile.vhd --junit junit.xml --quality_report quality_report.json
multiprocessing.pool.RemoteTraceback: 
"""
Traceback (most recent call last):
File "/usr/local/lib/python3.6/multiprocessing/pool.py", line 119, in worker
  result = (True, func(*args, **kwds))
File "/home/my_user/.local/lib/python3.6/site-packages/vsg/apply_rules.py", line 121, in apply_rules
  testCase = oRules.extract_junit_testcase(sFileName)
File "/home/my_user/.local/lib/python3.6/site-packages/vsg/rule_list.py", line 350, in extract_junit_testcase
  sLine += dViolation.get_solution()
TypeError: must be str, not NoneType
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/home/my_user/.local/bin/vsg", line 8, in <module>
  sys.exit(main())
File "/home/my_user/.local/lib/python3.6/site-packages/vsg/__main__.py", line 142, in main
  for tResult in pool.imap(f, enumerate(commandLineArguments.filename)):
File "/usr/local/lib/python3.6/multiprocessing/pool.py", line 699, in next
  raise value
TypeError: must be str, not NoneType

To Reproduce Steps to reproduce the behavior: use following my_rule.yaml file:

rule:
  architecture_025 :
    disable : False
    names :
      - arch

and following VHDL file, testfile.vhd:

entity test is
  port (
    clk : in    std_logic;
    rst : in    std_logic
  );
end entity test;

architecture testy of test is

begin

end architecture testy;

Expected behavior I expect following message as a solution: "Architecture identifier must be from this list: arch"

This message should be generated by _get_solution() but somehow this function is not called.

jeremiah-c-leary / vhdl-style-guide

`architecture_025` has no solution message. #995