chore: improve xtask integration with vscode

[makspll]

Summary

for a while there was a problem with using vscode and xtask,

specifically we override the check command to be xtask, but we do not do the same for the build command for macros, this somehow worked for a while, but I've recently run into more issue with it on the bevy 0.16 branch.

I finally put this issue to bed by:

• fixing a bug where the checks invoked per workspace, would actually run ALL WORKSPACE checks, which was slowing things down and confusing error logs
• extracting xtask so that it can be checked with a different command to remove loops from the system

I think the fact bevy_api_gen is a separate workspace nested inside the main workspace is a bit weird, so eventually after all the active PR's are merged, I will change the layout of things

[semanticdiff-com]

Review changes with  

Changed Files

File	Status
crates/bevy_api_gen/src/passes/cache_traits.rs	100% smaller
xtask/src/main.rs	17% smaller
.cargo/config.toml	Unsupported file format
Cargo.toml	Unsupported file format
check.ps1	Unsupported file format
check.sh	Unsupported file format
codegen_bevy_features.txt	Unsupported file format
xtask/Cargo.toml	Unsupported file format
xtask/Dockerfile	Unsupported file format
xtask/chef.Dockerfile	Unsupported file format
xtask/readme.md	Unsupported file format
xtask/templates/settings.json.tera	Unsupported file format

[github-actions]

Bencher Report

Branch	fix/xtask-for-real
Testbed	linux-gha

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Benchmark	Latency	nanoseconds (ns)
component/access Lua	📈 view plot ⚠️ NO THRESHOLD	3,583.60 ns
component/access Rhai	📈 view plot ⚠️ NO THRESHOLD	5,820.70 ns
component/get Lua	📈 view plot ⚠️ NO THRESHOLD	2,225.70 ns
component/get Rhai	📈 view plot ⚠️ NO THRESHOLD	4,560.20 ns
conversions/Mut::from	📈 view plot ⚠️ NO THRESHOLD	79.36 ns
conversions/Ref::from	📈 view plot ⚠️ NO THRESHOLD	77.87 ns
conversions/ScriptValue::List	📈 view plot ⚠️ NO THRESHOLD	298.26 ns
conversions/ScriptValue::Map	📈 view plot ⚠️ NO THRESHOLD	1,159.40 ns
conversions/ScriptValue::Reference::from_into	📈 view plot ⚠️ NO THRESHOLD	26.23 ns
conversions/Val::from_into	📈 view plot ⚠️ NO THRESHOLD	254.66 ns
function/call 4 args Lua	📈 view plot ⚠️ NO THRESHOLD	1,686.60 ns
function/call 4 args Rhai	📈 view plot ⚠️ NO THRESHOLD	1,299.00 ns
function/call Lua	📈 view plot ⚠️ NO THRESHOLD	228.82 ns
function/call Rhai	📈 view plot ⚠️ NO THRESHOLD	373.84 ns
loading/empty Lua	📈 view plot ⚠️ NO THRESHOLD	49,321.00 ns
loading/empty Rhai	📈 view plot ⚠️ NO THRESHOLD	701,610.00 ns
math/vec mat ops Lua	📈 view plot ⚠️ NO THRESHOLD	6,567.80 ns
math/vec mat ops Rhai	📈 view plot ⚠️ NO THRESHOLD	6,006.30 ns
query/10 entities Lua	📈 view plot ⚠️ NO THRESHOLD	19,435.00 ns
query/10 entities Rhai	📈 view plot ⚠️ NO THRESHOLD	21,056.00 ns
query/100 entities Lua	📈 view plot ⚠️ NO THRESHOLD	38,626.00 ns
query/100 entities Rhai	📈 view plot ⚠️ NO THRESHOLD	31,238.00 ns
query/1000 entities Lua	📈 view plot ⚠️ NO THRESHOLD	254,390.00 ns
query/1000 entities Rhai	📈 view plot ⚠️ NO THRESHOLD	158,240.00 ns
reflection/10 Lua	📈 view plot ⚠️ NO THRESHOLD	5,492.90 ns
reflection/10 Rhai	📈 view plot ⚠️ NO THRESHOLD	15,015.00 ns
reflection/100 Lua	📈 view plot ⚠️ NO THRESHOLD	48,643.00 ns
reflection/100 Rhai	📈 view plot ⚠️ NO THRESHOLD	721,750.00 ns
resource/access Lua	📈 view plot ⚠️ NO THRESHOLD	3,158.70 ns
resource/access Rhai	📈 view plot ⚠️ NO THRESHOLD	5,213.80 ns
resource/get Lua	📈 view plot ⚠️ NO THRESHOLD	1,796.20 ns
resource/get Rhai	📈 view plot ⚠️ NO THRESHOLD	3,960.90 ns

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