feat: split rmc off from prudp, make macros crate location independent and add tls connection setup

src/rnex_proxy_common.rs

@@ -0,0 +1,10 @@
+use macros::RmcSerialize;
+use crate::kerberos::KerberosDateTime;
+use crate::prudp::sockaddr::PRUDPSockAddr;
+
+#[derive(Debug, RmcSerialize)]
+#[rmc_struct(0)]
+pub struct ConnectionInitData{
+    pub prudpsock_addr: PRUDPSockAddr,
+}
+