tox.ini: Add file listing to install test.

Allows review of what files are installed and where.

Signed-off-by: Chris PeBenito <chpebeni@linux.microsoft.com>

tox.ini

@@ -41,7 +41,9 @@ commands        = mypy -p setools -p setoolsgui -p tests
 
 [testenv:install]
 deps            = {[testenv]deps}
-commands        = {envpython} -m pip install --use-pep517 .
+allowlist_externals = find
+commands        = {envpython} -m pip install --use-pep517 --root {envtmpdir}/setools .
+                  find {envtmpdir}/setools
 
 [testenv]
 passenv         = USERSPACE_SRC