[Graphbolt][Dataset] Add igb-hom dataset

[BowenYao18]

Description

I added IGB-HOM full dataset to the scripts.

Checklist

Please feel free to remove inapplicable items for your PR.

• The PR title starts with [$CATEGORY] (such as [NN], [Model], [Doc], [Feature]])
• I've leverage the tools to beautify the python and c++ code.
• The PR is complete and small, read the Google eng practice (CL equals to PR) to understand more about small PR. In DGL, we consider PRs with less than 200 lines of core code change are small (example, test and documentation could be exempted).
• All changes have test coverage
• Code is well-documented
• To the best of my knowledge, examples are either not affected by this change, or have been fixed to be compatible with this change
• Related issue is referred in this PR
• If the PR is for a new model/paper, I've updated the example index here.

Changes

[dgl-bot]

To trigger regression tests:

• @dgl-bot run [instance-type] [which tests] [compare-with-branch];
  For example: @dgl-bot run g4dn.4xlarge all dmlc/master or @dgl-bot run c5.9xlarge kernel,api dmlc/master

[dgl-bot]

Commit ID: a35ea43

Build ID: 1

Status: ❌ CI test failed in Stage [Lint Check].

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[dgl-bot]

Commit ID: 5bd643e

Build ID: 2

Status: ✅ CI test succeeded.

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[dgl-bot]

Commit ID: fcbfca2ac82be35ea937b4f6fe7875baaf4edb69

Build ID: 3

Status: ⚪️ CI test cancelled due to overrun.

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[dgl-bot]

Commit ID: a5493f77521fcbe43a64f5b9dfae86a1619063aa

Build ID: 4

Status: ✅ CI test succeeded.

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