feat: add HCISharedMemTransport

to support the shared memory transport layer for the
STM32WB built-in chip.
It also Allows HCI SPI Transport with STM32WBxx

Signed-off-by: Francois Ramu <francois.ramu@st.com>
Co-Authored-by: Frederic Pillon <frederic.pillon@st.com>

Author: FRASTM

keywords.txt

@@ -31,6 +31,7 @@ BLEDoubleCharacteristic	KEYWORD1
 BLEStringCharacteristic	KEYWORD1
 
 HCISpiTransportClass	KEYWORD1
+HCISharedMemTransportClass	KEYWORD1
 
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 # Methods and Functions (KEYWORD2)