0.5.1

• Added displaying stderr in test view
• Added marking alternative answers as correct with the ✓ action on test outs with Wrong Answer verdict. This is useful for tasks in which there are multiple correct answers.
• Simplified and documented manual builds, now available under Alt;.
• Documented creating new files from templates with Alt=
• Added icie.build.additionalCppFlags config entry, which allows adding additional flags during compilation.
• Debugger terminal titles now contain the name of the test.
• Hovering over an action now displays its short description.
• Created this changelog :)