build: improve cmake, add github actions (#16)

* build: install cmake config files to enable cmake find_package

fix: destination for header files

build: clean up build system

build: also install port directory header files

build: fix name of header files

ci: add github actions

build: add bsd port

chore: fix typos

build: remove not deeded mstpsnap

ci: disable ctests as not corrently

ci: disable macos for the moment

build: print compiler versions in cmake

* build: do not build apps by default

* build: add missing slash

* build: add more options to cmake (#3)

* build: add more options to cmake

* chore: disable ipv6

* build: guard around apps for options

* build: fix link lib on windows

apps/gateway/main.c

@@ -45,7 +45,6 @@
 #include "bacnet/apdu.h"
 #include "bacnet/iam.h"
 #include "bacnet/basic/tsm/tsm.h"
-#include "bacnet/basic/object/device.h"
 #include "bacnet/basic/object/bacfile.h"
 #include "bacnet/datalink/datalink.h"
 #include "bacnet/dcc.h"

apps/uptransfer/main.c

@@ -53,6 +53,7 @@
 #include "bacnet/basic/services.h"
 #include "bacnet/basic/tsm/tsm.h"
 #include "bacnet/datalink/dlenv.h"
+#include "bacnet/bacapp.h"
 
 /* buffer used for receive */
 static uint8_t Rx_Buf[MAX_MPDU] = { 0 };