ModelSim external tool incorrect version check when verifying setup

[voltavidTony]

Describe the bug
TerosHDL uses wrong binary name and argument to find ModelSim version. modelsim does not exist as a binary, and --version is wrong.

To Reproduce
Obtain ModelSim-Intel from the Intel FPGA Software Download Center.
Configure ModelSim as external tool and set correct install path.
Apply settings.

Please complete the following information:

• OS: Ubuntu 22.04.5
• VSCode version: 1.95.3
• TerosHDL version: 6.0.14

Screenshots

*************************************************
Checking External Tool Configuration (https://terostechnology.github.io/terosHDLdoc/docs/external_tools/) 
❌ Some checks failed ❌
*************************************************
⊙ Selected external tool: MODELSIM. Installation path: "/home/volta/intelFPGA/20.1/modelsim_ase/linux"
  🔎 Searching for the binary modelsim at "/home/volta/intelFPGA/20.1/modelsim_ase/linux/modelsim"
  ❌ modelsim not found at "/home/volta/intelFPGA/20.1/modelsim_ase/linux/modelsim". Search executed with: "/home/volta/intelFPGA/20.1/modelsim_ase/linux/modelsim --version"
  🔎 Searching for the binary modelsim at "/home/volta/intelFPGA/20.1/modelsim_ase/linux/modelsim.exe"
  ❌ modelsim not found at "/home/volta/intelFPGA/20.1/modelsim_ase/linux/modelsim.exe". Search executed with: "/home/volta/intelFPGA/20.1/modelsim_ase/linux/modelsim.exe --version"
  🔎 Searching for the binary modelsim at "/home/volta/intelFPGA/20.1/modelsim_ase/linux"
  ❌ modelsim not found at "/home/volta/intelFPGA/20.1/modelsim_ase/linux". Search executed with: "/home/volta/intelFPGA/20.1/modelsim_ase/linux --version"
  🔎 Searching for the binary modelsim at "/home/volta/intelFPGA/20.1/modelsim_ase/linux.exe"
  ❌ modelsim not found at "/home/volta/intelFPGA/20.1/modelsim_ase/linux.exe". Search executed with: "/home/volta/intelFPGA/20.1/modelsim_ase/linux.exe --version"
  🔎 Searching for the binary "modelsim" in the system path
  ❌ modelsim not found in the system path. Search executed with: "modelsim --version"
👎 The MODELSIM installation path is not correctly configured. The binary could not be located in either the system path or the configured path. Please check the documentation.

Additional context
There are actually two issues here:

1. ModelSim-Intel does not ship with a 'modelsim' binary. It is called 'vsim' instead
2. The correct command line option is -version, not --version. TerosHDL adds an extra dash

Solution
The solution was to place the following script (a file named 'modelsim' with no extension) in the binary folder:

#!/bin/sh
dir=`dirname "$0"`
if [ "$*" = "--version" ] ; then
  exec "$dir/vsim" "-version"
else
  exec "$dir/vsim" "$@"
fi

This fixes the issue:

*************************************************
Checking External Tool Configuration (https://terostechnology.github.io/terosHDLdoc/docs/external_tools/) 
🎉 Correctly configured 🎉🎉
*************************************************
⊙ Selected external tool: MODELSIM. Installation path: "/home/volta/intelFPGA/20.1/modelsim_ase/linux"
  🔎 Searching for the binary modelsim at "/home/volta/intelFPGA/20.1/modelsim_ase/linux/modelsim"
  ✅ modelsim found at "/home/volta/intelFPGA/20.1/modelsim_ase/linux/modelsim" using the command: "/home/volta/intelFPGA/20.1/modelsim_ase/linux/modelsim --version"
🎉 The MODELSIM installation path is correctly configured.

⊙ Execution mode: CMD. The tool will be executend in the command line.

⊙ Waveform viewer: TOOL. Built-in tool waveform viewer will be opened after the simulation if it is available.