split into src and lib and socket changes

* libanthracite files are now all in lib/
* anthracite-bin + anthracite-api-bin files are now all in src/
* socket split into header and source properly

lib/socket/socket.hpp

@@ -0,0 +1,34 @@
+#include <arpa/inet.h>
+#include <malloc.h>
+#include <netinet/in.h>
+#include <string>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+namespace anthracite::socket {
+
+
+class anthracite_socket {
+    static const int MAX_QUEUE_LENGTH = 100;
+private:
+    int server_socket;
+    int client_socket {};
+    std::string client_ip;
+    struct sockaddr_in client_addr {};
+    socklen_t client_addr_len {};
+    static constexpr struct timeval timeout_tv {
+        .tv_sec = 5, .tv_usec = 0
+    };
+
+public:
+    anthracite_socket(int port, int max_queue = MAX_QUEUE_LENGTH);
+
+    void wait_for_conn();
+    const std::string& get_client_ip();
+    void close_conn();
+    void send_message(std::string& msg);
+    std::string recv_message(int buffer_size);
+};
+
+};