sys: Replace existing bad project system with a much better one (#663)

* sys: Initial effort to replace existing project files with a better system

* sys: Added back marking provider as dirty

* sys: Remove git commit information from project files

* sys: Format data processor save file nicely

* fix: Automatic pattern loading not working correctly

* ui: Added warning popup when closing a provider with modifications

Closes #604

* sys: Fixed build issues

* tests: Removed useless debug logs

* patterns: Updated pattern language

* sys: Added log message when crashing with a signal

* sys: Make sure abnormal termination handlers are being called more reliably

lib/libimhex/include/hex/data_processor/node.hpp

@@ -42,7 +42,10 @@ namespace hex::dp {
         virtual void store(nlohmann::json &j) { hex::unused(j); }
         virtual void load(nlohmann::json &j) { hex::unused(j); }
 
-        using NodeError = std::pair<Node *, std::string>;
+        struct NodeError {
+            Node *node;
+            std::string message;
+        };
 
         void resetOutputData() {
             for (auto &attribute : this->m_attributes)