Add dev_tools/datagen: a script for generating random data for testing.
Add dev_tools/datagen: a script for generating random data for testing.

google/crush-tools,google/crush-tools,google/crush-tools,lexsf/crush-tools,google/crush-tools,lexsf/crush-tools,google/crush-tools,lexsf/crush-tools,google/crush-tools,google/crush-tools,lexsf/crush-tools,lexsf/crush-tools,lexsf/crush-tools,lexsf/crush-tools