proposal: Move proposal_t from libcharon to libstrongswan

This allows us to use it without having to initialize libcharon, which
was required for the logging (we probably could have included debug.h
instead of daemon.h to workaround that but this seems more correct).

src/libcharon/encoding/payloads/proposal_substructure.h

@@ -29,7 +29,7 @@ typedef struct proposal_substructure_t proposal_substructure_t;
 #include <library.h>
 #include <encoding/payloads/payload.h>
 #include <encoding/payloads/transform_substructure.h>
-#include <config/proposal.h>
+#include <crypto/proposal/proposal.h>
 #include <collections/linked_list.h>
 #include <kernel/kernel_ipsec.h>
 #include <sa/authenticator.h>

src/libcharon/encoding/payloads/transform_substructure.h

@@ -32,7 +32,7 @@ typedef struct transform_substructure_t transform_substructure_t;
 #include <crypto/signers/signer.h>
 #include <crypto/prfs/prf.h>
 #include <crypto/crypters/crypter.h>
-#include <config/proposal.h>
+#include <crypto/proposal/proposal.h>
 
 /**
  * IKEv1 Value for a transform payload.