Add DeveloperInfo (#101)

Add getting started info for devs

Author: ivberg

DeveloperInfo.md

@@ -0,0 +1,54 @@
+# Microsoft Performance Tools Linux / Android - Developer Information
+
+# Prerequisites
+
+See [Readme Dev PreReqs](Readme.md#Dev%20prereqs)
+
+# Code Editing
+
+## Entire Project
+If working on the entire project, or editing .sln or .csproj files 
+[Visual Studio](https://visualstudio.microsoft.com/) is recommended
+
+Open [Microsoft-Perf-Tools-Linux-Android.sln](Microsoft-Perf-Tools-Linux-Android.sln) in VS
+
+## Single Files
+Use your favorite editor
+
+## Build & Test
+
+### Cross Platform Cmd-Line
+- ```dotnet build```
+- ```dotnet test```
+
+### IDE
+- VS Build Solution or Build Project
+
+# Debugging & Testing
+
+## Dev inner loop
+It's often fastest to debug the Unit Test examples since they wrap the plugins. This method keeps runtime overhead to a minimum. See the various *UnitTest projects
+
+- VS Test Explorer is a great way to visualize / run / debug tests. Test -> Test Explorer
+
+## Plugin visualization and trace testing
+- After getting some stabilization in a plugin, it's often fastest to test or investigate multiple traces using a GUI.
+
+- The plugins are not tied to any specific GUI. However the GUI does need to support the [Microsoft Performance Toolkit SDK](https://github.com/microsoft/microsoft-performance-toolkit-sdk)
+
+### WPA GUI
+- Debugging using WPA
+  - We have not figured out to debug attach using Store versions of WPA. Therefore, as a developer, you will need to use a non-Store version
+  - For external devs outside Microsoft, use latest [Windows Insider Preview ADK](https://www.microsoft.com/en-us/software-download/windowsinsiderpreviewADK) and install just WPA
+  - For internal devs inside Microsoft, use the latest internal WPA
+- Using VS2022 Launch Profiles
+  - To Start WPA with your plugin (doesn't auto-open file)
+    - Executable
+        - "C:\PATH\TO\wpa.exe"
+    - Command line arguments - 
+      - -addsearchdir "C:\src\Microsoft-Performance-Tools-Linux-Android\ThePlugin\bin\Debug"
+  - To Start WPA with your plugin AND auto-open file
+    - Executable
+        - "C:\PATH\TO\wpa.exe"
+    - Command line arguments - 
+      - -addsearchdir "C:\src\Microsoft-Performance-Tools-Linux-Android\ThePlugin\bin\Debug" -i "C:\PATH\TO\tracefile.ext"