Rename tflite namespace

[andresovela]

On a project I'm working on, we have a dependency both on tensorflow and tflite-micro.

We recently had an issue due to duplicated namespaces in the workspace, i.e. both tensorflow and tflite-micro use the tflite namespace.

As far as I can tell, the implementations under tensorflow/lite in the tensorflow and tflite-micro repositories have diverged significantly. I think a rename would be beneficial to avoid clashes and generally much more transparent.

I'd like to propose renaming the tflite namespace to tflm. The actual name is bikesheddable.

Are there any drawbacks, other than the huge search&replace, to having such a rename in the future?

[rascani]

There's still a good chunk of code that is regularly copied from the TFLite repository to TFLM. There is a daily sync of those sources (that is currently broken, but I'm working on that). Since not all of the sources would be able to transition to a tflm namespace, so we'd have to add qualifiers or using statements for everything in the tflm namespace to use things from the tflite namespace.