Implement SPT run configuration

[Virtlink]

An SPT test run configuration for IntelliJ would allow users to run SPT tests from within their IDE.

• Implement a ConfigurationType, the run configuration type.
• Register the ConfigurationType.
• Implement a ConfigurationFacory, the run configuration factory.
• Implement a RunConfiguration (derived from LocatableConfigurationBase?) the run configuration itself.
• Return RunProfileState to run the SPT tests.
• Implement SPT test status printer.
• Implement a SettingsEditor, for editing the run configuration.
• Persist the RunConfiguration using its writeExternal and readExternal methods.
• Implement a RunConfigurationProducer to produce run configurations from context.