Add Arm-FVP launch configuration in templates

[jthuangarm]

Note

This PR is still under development.
Please do not merge until this note is removed.

• Add launch.json generation support for Arm-FVP.
• Add the FVP GDBServer plugin argument using ${env:AVH_FVP_PLUGINS}.
• Set the default Arm-FVP GDB server port to 10000, matching the default port used by the FVP GDBServer plugin.
• Avoid generating a trailing empty "" argument in FVP launch.json and tasks.json configuration, because FVP treats it as an empty application path and fails during launch.

Currently, this launch configuration:

• only supports singlecore-launch.
• doesn't support auxiliaryGdb.

[jkrech]

I think we require both the launch and attach variants for FVP

The gdbserver port can be configured via a plug-in parameter

--parameter GDBServer.port=7123

For multi-core a parameter can be configured to select the processor:

--parameter GDBServer.core_name=component.cpu0

[jthuangarm]

Thanks for the feedback. I refactored the FVP template to reduce duplication, kept the port number using 3333 and added the singlecore-attach variant.

Notes:

1. Reset
   monitor reset halt is not supported by the FVP GDBServer. I tested the RSP command maintenance packet R00, but the original plugin timed out because it did not reply to GDB after reset. I asked Codex to add the missing reply (e.g. a single line), build a test GDBServer.dll, and verified that reset works reliably. Therefore, I kept maintenance packet R00 in customResetCommands.

2. Run and Attach
   I tested Load & Run Application followed by manual attach with the new FVP attach configuration. The attach flow works. One remaining issue is that the Load & Run Application / Load & Debug Application icons do not update after pressing Load & Run Application, which needs investigation.

[jthuangarm]

Add a dummy entry for CMSIS Load to work around the problem described in the preceding second note. Here is the result:

 *  Executing task: echo Skipping CMSIS Load: images are loaded by the FVP model when CMSIS Run starts. 

Skipping CMSIS Load: images are loaded by the FVP model when CMSIS Run starts.
 *  Terminal will be reused by tasks, press any key to close it. 

 *  Executing task: C:\FVP\0.0+10356\conan_package_fastmodels_deliverable_binary_MDK-windows-x86\MDK_0.0_10356_Windows_x86\MDK_0.0_10356\bin\FVP_Corstone_SSE-300_Ethos-U55.exe -D --plugin C:\FVP\0.0+10356\conan_package_fastmodels_modellib-windows-x86-vs2019-rel\conan_package\plugins\Win64_VC2019\Release\GDBServer.dll -C GDBServer.port=3333 -f FVP/FVP_Corstone_SSE-300/fvp_config.txt -a out/Hello/CS300/Debug/AC6/Hello.hex 

Info: FVP_MPS3_Corstone_SSE_300: telnetterminal5: Listening for serial connection on port 5001
Info: FVP_MPS3_Corstone_SSE_300: telnetterminal1: Listening for serial connection on port 5003
Info: FVP_MPS3_Corstone_SSE_300: telnetterminal0: Listening for serial connection on port 5000
Info: FVP_MPS3_Corstone_SSE_300: telnetterminal2: Listening for serial connection on port 5002
GDBServer: Debug core: component.FVP_MPS3_Corstone_SSE_300.cpu0
GDBServer: Listening address="127.0.0.1" port=3333