feat(options): implement "set -a"

[reubeno]

No description provided.

[github-actions]

Test Results

    2 files      9 suites   1m 21s ⏱️
  601 tests   601 ✅ 0 💤 0 ❌
1 188 runs  1 188 ✅ 0 💤 0 ❌

Results for commit 717bf9a.

♻️ This comment has been updated with latest results.

[github-actions]

Performance Benchmark Report

Benchmark name	Baseline (μs)	Test/PR (μs)	Delta (μs)	Delta %
clone_shell_object	16.51 μs	16.32 μs	-0.18 μs	🟢 -1.11%
eval_arithmetic	0.20 μs	0.19 μs	-0.01 μs	⚪ Unchanged
expand_one_string	1.60 μs	1.59 μs	-0.01 μs	⚪ Unchanged
for_loop	32.94 μs	32.88 μs	-0.05 μs	⚪ Unchanged
function_call	3.44 μs	3.61 μs	0.17 μs	⚪ Unchanged
instantiate_shell	48.21 μs	48.53 μs	0.32 μs	⚪ Unchanged
instantiate_shell_with_init_scripts	24188.83 μs	23405.39 μs	-783.44 μs	🟢 -3.24%
parse_bash_completion	1667.41 μs	1663.95 μs	-3.46 μs	⚪ Unchanged
parse_sample_script	1.76 μs	1.75 μs	-0.01 μs	⚪ Unchanged
run_echo_builtin_command	16.57 μs	16.13 μs	-0.44 μs	⚪ Unchanged
run_one_external_command	2453.51 μs	2345.12 μs	-108.39 μs	🟢 -4.42%
tokenize_sample_script	2.78 μs	2.87 μs	0.09 μs	🟠 +3.31%

Code Coverage Report: Only Changed Files listed

Package	Base Coverage	New Coverage	Difference
brush-core/src/builtins/declare.rs	🟢 81.79%	🟢 81.94%	🟢 0.15%
brush-core/src/env.rs	🟢 88.05%	🟢 87.45%	🔴 -0.6%
brush-core/src/interp.rs	🟢 90.91%	🟢 91.08%	🟢 0.17%
brush-core/src/shell.rs	🟢 77.95%	🟢 78.08%	🟢 0.13%
brush-core/src/variables.rs	🟢 80.04%	🟢 80.9%	🟢 0.86%
Overall Coverage	🟢 74.68%	🟢 74.74%	🟢 0.06%

Minimum allowed coverage is 70%, this run produced 74.74%