Refactor the folder structure which only had 2 'real' modules, now it's more real, no need for splitting into folders beside the external one

src/plugin_project_management.cpp

@@ -0,0 +1,137 @@
+void SetProjectFolder(String dir) {
+    ProjectFolder = Intern(&GlobalInternTable, dir);
+    Scratch scratch;
+    For (Buffers) {
+        if (it->special) {
+            String name = SkipToLastSlash(it->name);
+            it->name = Intern(&GlobalInternTable, Format(scratch, "%S/%S", dir, name));
+        }
+    }
+}
+
+void CO_OpenCode(mco_coro *co) {
+    CCtx *ctx = GetCoroutineContext();
+    Array<String> patterns = SplitWhitespace(ctx->arena, OpenCodePatterns);
+    Array<String> exclude_patterns = SplitWhitespace(ctx->arena, OpenCodeExcludePatterns);
+    Array<String> dirs = {ctx->arena};
+    Add(&dirs, Copy(ctx->arena, ProjectFolder));
+    for (int diri = 0; diri < dirs.len; diri += 1) {
+        for (FileIter it = IterateFiles(ctx->arena, dirs[diri]); IsValid(it); Advance(&it)) {
+            bool should_open = true;
+            if (!it.is_directory) {
+                should_open = false;
+                ForItem (ending, patterns) {
+                    if (EndsWith(it.absolute_path, ending)) {
+                        should_open = true;
+                        break;
+                    }
+                }
+            }
+
+            ForItem (ending, exclude_patterns) {
+                if (EndsWith(it.absolute_path, ending)) {
+                    should_open = false;
+                    break;
+                }
+            }
+
+            if (!should_open) {
+                continue;
+            }
+
+
+            if (it.is_directory) {
+                Add(&dirs, it.absolute_path);
+            } else {
+                BufferOpenFile(it.absolute_path);
+            }
+
+            Yield(co);
+        }
+    }
+} RegisterCoroutineCommand(
+    CO_OpenCode,
+    "",
+    "Open all code files in current ProjectFolder, the code files are determined through NonCodePatterns_EndsWith config variable list",
+    data->dont_wait_until_resolved = true;
+);
+
+void OpenProject(String directory) {
+    SetProjectFolder(directory);
+#if PLUGIN_CONFIG
+    Scratch scratch;
+    for (FileIter it = IterateFiles(scratch, directory); IsValid(it); Advance(&it)) {
+        if (EndsWith(it.filename, "project.te")) {
+            LoadConfig(it.absolute_path);
+        }
+    }
+#endif
+}
+
+void CMD_OpenProject() {
+    BSet main = GetBSet(PrimaryWindowID);
+    String directory = GetDirectory(main.buffer);
+    OpenProject(directory);
+} RegisterCommand(CMD_OpenProject, "", "Sets the project directory, opens the project file etc.");
+
+String16 CreateProjectBuildBat = uR"==(@echo off
+mkdir build
+pushd build
+cl ../src/main.cpp /Zi /FC /nologo /WX /W3 /wd4200 /wd4334 /diagnostics:column
+popd
+)==";
+
+String16 CreateProjectBuildSh = uR"==(#!/usr/bin/bash
+mkdir build
+cd build
+clang ../src/main.cpp -g -Wall -Wno-missing-braces -Wno-writable-strings -fdiagnostics-absolute-paths
+)==";
+
+String16 CreateProjectMain = uR"==(#include <stdio.h>
+int main() {
+    printf("hello world!\n");
+    return 0;
+}
+)==";
+
+void CO_CreateProject(mco_coro *co) {
+    String16 project_name16 = QueryUserString(co, "Please tell me, how would you like to name your project?");
+    String directory = GetPrimaryDirectory();
+
+    // - project_directory
+    //     - project.te
+    //     - build.bat
+    //     - build.sh
+    //     - src
+    //         - main.c
+    {
+        Scratch scratch;
+        String project_name = ToString(scratch, project_name16);
+        String project_dir = Format(scratch, "%S/%S", directory, project_name);
+        String src_dir = Format(scratch, "%S/src", project_dir);
+        MakeDir(project_dir);
+        MakeDir(src_dir);
+        SetProjectFolder(project_dir);
+
+        Buffer *project = BufferOpenFile(Format(scratch, "%S/project.te", project_dir));
+        RawAppendf(project, ":OpenCode\n:Set BinaryUnderDebug '%S/build/main.exe'\n", project_dir);
+        SaveBuffer(project);
+
+        Buffer *build_bat = BufferOpenFile(Format(scratch, "%S/build.bat", project_dir));
+        RawAppend(build_bat, CreateProjectBuildBat);
+        SaveBuffer(build_bat);
+
+        Buffer *build_sh = BufferOpenFile(Format(scratch, "%S/build.sh", project_dir));
+        RawAppend(build_sh, CreateProjectBuildSh);
+        SaveBuffer(build_sh);
+
+        Buffer *main_file = BufferOpenFile(Format(scratch, "%S/main.cpp", src_dir));
+        RawAppend(main_file, CreateProjectMain);
+        SaveBuffer(main_file);
+
+        OpenProject(project_dir);
+        Open(main_file->name);
+    }
+
+    CO_OpenCode(co);
+} RegisterCoroutineCommand(CO_CreateProject, "", "Creates a project in current buffer directory with template files and all that, asks user for input etc.");