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

src/bacnet/basic/object/gateway/gw_device.c

@@ -43,7 +43,7 @@
 #include "bacnet/basic/services.h"
 #include "bacnet/datalink/datalink.h"
 #include "bacnet/basic/binding/address.h"
-#include "reject.h"
+#include "bacnet/reject.h"
 /* include the objects */
 #include "bacnet/basic/object/ai.h"
 #include "bacnet/basic/object/ao.h"

src/bacnet/datalink/dlenv.c

@@ -39,6 +39,11 @@
 #include "bacnet/basic/object/netport.h"
 #endif
 
+#if defined(BACDL_BIP6)
+#include "bacnet/datalink/bvlc6.h"
+#include "bacnet/datalink/bip6.h"
+#endif
+
 /** @file dlenv.c  Initialize the DataLink configuration. */
 
 #if defined(BACDL_BIP)