Switch to metis 5.1.0 (Closes #16)

Switch to metis 5.1.0.

Also changed abs function call: Switch to rabs according to version 5.1.1 tag (https://github.com/KarypisLab/METIS/blob/v5.1.1-DistDGL-v0.5/libmetis/balance.c)

added 1 commit

• 8b861a6d - Comment out of rint, as this should be provided by windows.

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changed title from Switch to metis 5.1.0 to Switch to metis 5.1.0 (Closes #16)

mentioned in commit b6e2b2fb

merged