Sanitizer: Add more suppressions to our list.

These new ones (one new 'python' case, and some for external libraries
that were not affected so far) seem to be needed to get sanitizer builds
tests to work on current Linux buildbot.

tools/config/analysis/lsan.supp

@@ -9,6 +9,7 @@ leak:_Py_*
 leak:_PyUnicodeWriter_*
 leak:list_append
 leak:list_resize
+leak:unicode_resize
 leak:PyThread_allocate_lock
 leak:libpython*
 leak:python
@@ -27,3 +28,7 @@ leak:i965_dri
 leak:libdrm*
 leak:radeon*
 leak:libGLX*
+leak:d_growable_string_callback_adapter
+leak:libusd*
+leak:*openvdb::v11_0*
+leak:*tbb::internal*