v.0.5.0 cleanup code, utils ...

app/utils/math_utils.py

@@ -0,0 +1,9 @@
+def show_byte_matrix(char, matrix):
+	print(f'byte_matrix: char({char})')
+	matrix_str = [f'0x{byte:02X}' for byte in matrix]
+	[print(f'{matrix_str[idx]} {number_to_bitarray_msb(byte)}') for idx, byte in enumerate(matrix)]
+
+
+def number_to_bitarray_msb(number, bits=8):
+	"""Convert 8/16-bit number to bit array (MSB first)"""
+	return [(number >> i) & 1 for i in range(bits - 1, -1, -1)]