freetdm: added boost sample app

libs/freetdm/sample/boost/Makefile

+CC=gcc
+CFLAGS=-Wall -I/usr/local/freeswitch/include 
+LDFLAGS=-L/usr/local/freeswitch/lib -lfreetdm
+
+ftdmstart: ftdmstart.o
+
+clean:
+	rm -rf ftdmstart.o
+	
+