Add TensorFlow template for `flwr new` #9769

Job	Run time
Build, test and upload wheel	1m 27s
Strategy / FedMedian	1m 23s
Framework / bare	2m 26s
Strategy / FedTrimmedAvg	1m 28s
Framework / bare-https	1m 14s
Strategy / QFedAvg	3m 49s
Strategy / FaultTolerantFedAvg	1m 16s
Strategy / FedAvgM	1m 16s
Framework / bare-client-auth	56s
Strategy / FedAdam	1m 13s
Framework / jax	1m 48s
Strategy / FedAdagrad	3m 13s
Framework / pytorch	6m 30s
Strategy / FedYogi	1m 16s
Framework / tensorflow	8m 16s
Framework / tabnet	2m 43s
Framework / opacus	8m 28s
Framework / pytorch-lightning	2m 32s
Framework / scikit-learn	2m 20s
Framework / fastai	3m 52s
Framework / pandas	1m 43s
	59m 9s

Provide feedback