Add CMake support

Clean up file structure.
Update build scripts.

src/subexport.h

@@ -0,0 +1,38 @@
+#ifndef SUBEXPORT_H_INCLUDED
+#define SUBEXPORT_H_INCLUDED
+
+#include <string>
+
+struct ruleset_content
+{
+    std::string rule_group;
+    std::string rule_path;
+    std::string rule_content;
+};
+
+struct extra_settings
+{
+    bool add_emoji = false;
+    bool remove_emoji = false;
+    bool append_proxy_type = true;
+    bool udp = false;
+    bool tfo = false;
+    bool nodelist = false;
+    bool sort_flag = false;
+    std::string surge_ssr_path;
+};
+
+
+std::string netchToClash(std::vector<nodeInfo> &nodes, std::string &base_conf, std::vector<ruleset_content> &ruleset_content_array, string_array &extra_proxy_group, bool clashR, extra_settings &ext);
+std::string netchToSurge(std::vector<nodeInfo> &nodes, std::string &base_conf, std::vector<ruleset_content> &ruleset_content_array, string_array &extra_proxy_group, int surge_ver, extra_settings &ext);
+std::string netchToMellow(std::vector<nodeInfo> &nodes, std::string &base_conf, std::vector<ruleset_content> &ruleset_content_array, string_array &extra_proxy_group, extra_settings &ext);
+std::string netchToSS(std::vector<nodeInfo> &nodes, extra_settings &ext);
+std::string netchToSSR(std::vector<nodeInfo> &nodes, extra_settings &ext);
+std::string netchToVMess(std::vector<nodeInfo> &nodes, extra_settings &ext);
+std::string netchToQuanX(std::vector<nodeInfo> &nodes, extra_settings &ext);
+std::string netchToQuan(std::vector<nodeInfo> &nodes, extra_settings &ext);
+std::string netchToSSD(std::vector<nodeInfo> &nodes, std::string &group, extra_settings &ext);
+std::string buildGistData(std::string name, std::string content);
+int uploadGist(std::string name, std::string path, std::string content, bool writeManageURL);
+
+#endif // SUBEXPORT_H_INCLUDED