Signed-off-by: Fionn O'Donohoe <fionno@xilinx.com>

This reverts commit fe4a150c, reversing
changes made to c98c2211.

* [Build] initial commit for a build util fxn

* [Build] flesh out build_dataflow

* [Build] bugfixes+partitioning for dataflow build

* [Build] support from/to steps, add some verbosity

* [Build] use explicit strings for config enums

* [Deps] add clize and dataclasses-json

* [Build] add cmdline entry for building folder, mixin json to cfg

* [Build] cd into specified dir for build_dataflow

* [Infra] add new build_dataflow entrypoint to run_docker.sh

* [Build] let Python do exception handling in build_dataflow

* [Infra] add new run-docker.sh entrypoint for build_custom

* [Deps, Infra] update finn-base, set FINN_BUILD_DIR envvar

* [Test] fix manual /tmp usage in tests

* [Infra] avoid manual setting of build dir for now

breaks in IP stitching for some reason

* [Docs, Build] rename to build_dataflow + add some docs

* [GHA] fix missing env.var.

* [Build] allow specifying steps by name

* [Build] add logging support in build_dataflow

* [Zynq] use impl resources, add close_project

still looking for ways around Vivado randomly hanging and not exiting 
after synth finish

* [Build] make more outputs available from build_dataflow

* [Zynq] use vivado -batch for tcl call to synth

* [Deps] update pyverilator

* [Build] use abspath

* [Test] add test_build_dataflow_directory

* [Build] add build.py example

* [Docs] add docs about command line entry

* [Setup] include finn-base in install_requires

this is needed to build readthedocs properly

hopefully speeds up GHA tests a bit