Magic extensions

[dmail]

• On bare specifier errors, try magic extensions if any to see if that leads to a file
• Replace extensionlessAutomapping with magicExtensions
• Update doc

[github-actions[bot]]

Performance impact

Impact on 9 metrics when merging magic_extensions into master. Before drawing conclusion, keep in mind performance variability.

package metrics (-0.15%)

Metric	Before merge	After merge	Impact
import duration	0.269 seconds	0.266 seconds	-0.003 seconds / -1.12%	:arrow_lower_right:
import memory heap used	6.66 MB	6.66 MB	+768 B / +0.01%	:arrow_upper_right:
npm tarball size	22.24 KB	22.33 KB	+86 B / +0.38%	:arrow_upper_right:
npm tarball unpacked size	99.95 KB	99.93 KB	-22 B / -0.02%	:arrow_lower_right:
npm tarball file count	23	23		:ghost:

write importmap metrics (+0%)

Metric	Before merge	After merge	Impact
write importmap duration	0.284 seconds	0.284 seconds		:ghost:
write importmap memory heap used	6.73 MB	6.73 MB	+200 B / +0%	:arrow_upper_right:
number of fs read operation	0	0		:ghost:
number of fs write operation	8	8		:ghost:

_{Generated by @jsenv/performance-impact during performance_impact#1592443685 on a0b479c}

[codecov[bot]]

Codecov Report

Merging #54 (a0b479c) into master (cf0a5b9) will increase coverage by 0.10%. The diff coverage is 96.87%.