Remove Tcl from sample configs

[BsAtHome]

There are Tcl coded HAL files that need to be examined at flattened.

Bigger discussion: Move from Tcl to Python.

[alex-pres]

+1 for this.

just an idea to possible format:

from linuxcnc.hal.dsl import *

motion = loadrt("motmod", servo_period_nsec=1_000_000, num_joints=3)
nyx    = loadrt("nyx", cfg="...")
mux    = loadrt("mux2", count=2)

servo = thread("servo-thread")
servo.addf(motion.command_handler, motion.controller, mux[0])   # order = addf order

estop = Net("estop-out") << motion["e-stop"] >> m1.input_pin0 >> nyx[0]["some-hal-in"]
#                    src ^^ (exactly one)     ^^ sinks (any number)

setp(m1.input_pin1, 13)          # or m1.input_pin1.set(13); avoid "<=" for sett
setp(mux[0].in0, 0.5)

it is close enough to usual .hal file + full power of Python.