chore(rln): expose leaves_set api

[rymnc]

Exposes the leaves_set api to allow consuming applications to have more metadata about the tree

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Benchmark for e91aa28

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| Test | Base | PR | % | |------|--------------|------------------|---| | FullMerkleTree::delete | **1239.3±4.23ns** | 1245.0±0.40ns | **+0.46%** | | FullMerkleTree::get | 4.0±0.00ns | 4.0±0.00ns | 0.00% | | FullMerkleTree::override_range | **3.1±0.00µs** | 3.2±0.00µs | **+3.23%** | | FullMerkleTree::set | **1238.9±0.46ns** | 1245.8±2.27ns | **+0.56%** | | OptimalMerkleTree::compute_root | 1390.9±6.36ns | **1386.1±1.09ns** | **-0.35%** | | OptimalMerkleTree::delete | 1385.7±3.90ns | **1381.6±0.78ns** | **-0.30%** | | OptimalMerkleTree::get | 25.9±0.01ns | **25.6±0.02ns** | **-1.16%** | | OptimalMerkleTree::override_range | **7.1±0.01µs** | 7.2±0.05µs | **+1.41%** | | OptimalMerkleTree::set | 1383.8±2.90ns | **1379.5±0.97ns** | **-0.31%** |

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Benchmark for e91aa28

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| Test | Base | PR | % | |------|--------------|------------------|---| | Pmtree::compute_root | 2.0±0.01ns | 2.0±0.02ns | 0.00% | | Pmtree::get | 464.8±3.16ns | **461.6±0.45ns** | **-0.69%** | | Pmtree::override_range | 180.9±10.57µs | 176.2±8.65µs | -2.60% | | Pmtree::set | 70.0±1.10µs | **69.9±0.06µs** | **-0.14%** | | Pmtree:delete | **69.7±0.08µs** | 70.0±1.87µs | **+0.43%** |

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Benchmark for 8007266

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| Test | Base | PR | % | |------|--------------|------------------|---| | FullMerkleTree::delete | 1423.2±57.59ns | 1438.9±52.99ns | +1.10% | | FullMerkleTree::get | 4.1±0.15ns | 4.1±0.22ns | 0.00% | | FullMerkleTree::override_range | 3.6±0.17µs | 3.5±0.14µs | -2.78% | | FullMerkleTree::set | **1406.5±43.02ns** | 1520.3±87.00ns | **+8.09%** | | OptimalMerkleTree::compute_root | 1646.4±65.55ns | 1709.1±63.54ns | +3.81% | | OptimalMerkleTree::delete | **1602.4±71.39ns** | 1721.8±90.64ns | **+7.45%** | | OptimalMerkleTree::get | 30.8±3.16ns | 32.6±2.19ns | +5.84% | | OptimalMerkleTree::override_range | **8.3±0.34µs** | 8.8±0.51µs | **+6.02%** | | OptimalMerkleTree::set | **1594.7±72.25ns** | 1832.4±244.82ns | **+14.91%** |

[github-actions[bot]]

Benchmark for 8007266

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| Test | Base | PR | % | |------|--------------|------------------|---| | Pmtree::compute_root | 2.0±0.02ns | 2.0±0.02ns | 0.00% | | Pmtree::get | **460.6±0.34ns** | 475.9±0.33ns | **+3.32%** | | Pmtree::override_range | 184.1±11.23µs | 184.3±15.91µs | +0.11% | | Pmtree::set | 70.1±0.63µs | **69.5±0.06µs** | **-0.86%** | | Pmtree:delete | 69.8±0.05µs | **69.7±0.14µs** | **-0.14%** |