Moved CRL/OCSP checking to a dedicated plugin called revocation

src/libstrongswan/plugins/revocation/Makefile.am

@@ -0,0 +1,16 @@
+
+INCLUDES = -I$(top_srcdir)/src/libstrongswan
+
+AM_CFLAGS = -rdynamic
+
+if MONOLITHIC
+noinst_LTLIBRARIES = libstrongswan-revocation.la
+else
+plugin_LTLIBRARIES = libstrongswan-revocation.la
+endif
+
+libstrongswan_revocation_la_SOURCES = \
+	revocation_plugin.h revocation_plugin.c \
+	revocation_validator.h revocation_validator.c
+
+libstrongswan_revocation_la_LDFLAGS = -module -avoid-version