Add create env command button to related files

[karthiknadig]

Add the create environment command button to following files:

1. Any file classified as a pip-requirements file.
2. A pyproject.toml with build.system table.

[karthiknadig]

Verification steps:

1. Ensure python extension is installed and activated. (see Output > Python)
2. Create a requirements.txt file with following content:

pytest
pytest-cov

3. A button should appear.

[ulugbekna]

Verified, but would it be better to name the button "Create Python Environment..." ? Given how python is popular among people new to programming, just "create env" may be a bit confusing to them, I think. @karthiknadig

[karthiknadig]

@ulugbekna Thanks for the feedback, I will discuss this with the team. One reason we didn't put python in there is because requirements.txt is specific to python.

/cc @luabud @cwebster-99

[luabud]

ohh I see your point -- It could be helpful for folks who are not as familiar with the concept of virtual environments (or Python envs). I'll defer to @cwebster-99's opinion & expertise here 😊

[cwebster-99]

For new users, I hypothesize that they wouldn't know that a requirements.txt file is specific to Python. Those newer users are oftentimes not aware what a virtual environment is either, or if they use one they do so based on explicit instruction.

I think it is worth changing the button to "Create Python Environment" to be more specific for those newer users that may be hesitant because they don't know what applies to Python and what does not.