[algorithm] Make default dataformat search look for more types

The test prefix and generated platform prefix have two different
content, therefore, search for both integer and integers to ensure
one is found at run time.

Fixes #67
2 jobs for 67_fix_algorithm_default_dataformat in 19 minutes and 1 second
Status Job ID Name Coverage
  Build
passed #158293
docker-build
build_linux_36

00:16:41

65.0%
passed #158294
macosx
build_macosx_36

00:18:56

65.0%