Add required Windows batch scripts to make RADAE work.

radae_rx.bat

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+@echo off
+
+set RADAE_PATH=%1
+set RADAE_VENV=%2
+
+rem The below does the following:
+rem * For each block of OTA audio from freedv-gui:
+rem * Convert the 8 kHz audio into IQ data via zero-padding.
+rem * Pass the IQ data into the RADAE decoder 
+rem * Send the resulting 16 kHz audio back to freedv-gui for playback.
+rem
+rem Note: Current RADAE scripts seem to require being executed from
+rem the RADAE folder.
+cd %RADAE_PATH%
+set PATH=%RADAE_VENV%\scripts;%PATH%
+%RADAE_VENV%\scripts\python.exe -u int16tof32.py --zeropad | %RADAE_VENV%\scripts\python.exe -u radae_rx.py model19_check3\checkpoints\checkpoint_epoch_100.pth -v 2 --auxdata | build\src\lpcnet_demo -fargan-synthesis - -

radae_tx.bat

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+@echo off
+
+set RADAE_PATH=%1
+set RADAE_VENV=%2
+
+rem The below does the following:
+rem * For each block of microphone audio from freedv-gui:
+rem * Extract features from 16 kHz input audio.
+rem * Pass features into the RADAE encoder.
+rem * Send the resulting 8 kHz audio back to freedv-gui.
+rem
+rem Note: Current RADAE scripts seem to require being executed from
+rem the RADAE folder.
+cd %RADAE_PATH%
+set PATH=%RADAE_VENV%\scripts;%PATH%
+build\src\lpcnet_demo -features - - | %RADAE_VENV%\scripts\python.exe -u radae_tx.py model19_check3\checkpoints\checkpoint_epoch_100.pth --auxdata | %RADAE_VENV%\scripts\python.exe -u f32toint16.py --real --scale 16383