[Toybox] Test suite now has pending tests.

[Rob Landley]

I realized I can use the executable bit to indicate "pending" status of tests,
so "VERBOSE=fail make tests" now passes the full list. Set TEST_ALL=1 to add
back in the failing tests.

This is only (currently) succeeding when run as a normal user, meaning a lot of
tests are skipped because not root. But it gives me a baseline to regression
test against and add things to...

This doesn't mean the tests that _are_ enabled don't need work. (Divya meant
well, but... if VERBOSE=fail exits the script early and you leave 5 backgrounded
"yes > /dev/null" instances running, that's not a good thing. Also you can get
false positives on pgrep -f looking for "yes", that needs some form of
containerization to run reliably. Also the module symbols in the ne2k driver
suffer from version skew when you upgrade your OS...)

Ahem.

Rob