Add back make.bat for building docs and running doctests on Windows
#286
| Job | Run time |
|---|---|
| 47s | |
| 42s | |
| 1m 19s | |
| 1m 12s | |
| 44s | |
| 1m 35s | |
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| 1m 21s | |
| 46s | |
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| 1m 30s | |
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| 3m 49s | |
| 1m 12s | |
| 36s | |
| 1s | |
| 18m 33s |