Correct full_domain=True For from_pandas

[nguyenv]

• Previously, the tile_max was only correctly calculated for
  np.int64. This correctly set the dim_max to dtype_max - tile
  but only for np.int64
• All other integer dtypes had dim_max set to dtype_max which
  resulted in a domain range that was too large
• We also need to account for when the tile extent is larger than
  the range of the full domain. For an instance, when we have a dim
  dtype of np.int8, the default tile extent of 10000 will be much
  larger than the range of the full domain

[nguyenv]

I am running into one issue though. When I try to create the full domain for np.int8:

>>> tiledb.Dim(domain=(-128, 126), tile=254, dtype=np.int8)

I get this error:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "tiledb/libtiledb.pyx", line 1982, in tiledb.libtiledb.Dim.__init__
  File "tiledb/libtiledb.pyx", line 1963, in tiledb.libtiledb.Dim.__init__
  File "tiledb/libtiledb.pyx", line 579, in tiledb.libtiledb.check_error
  File "tiledb/libtiledb.pyx", line 575, in tiledb.libtiledb._raise_ctx_err
  File "tiledb/libtiledb.pyx", line 560, in tiledb.libtiledb._raise_tiledb_error
tiledb.cc.TileDBError: [TileDB::Dimension] Error: Tile extent check failed; Tile extent exceeds dimension domain range

But I don't think I should be?

[ihnorton]

I'll have to look closer later, it fails even with tile=120. I think the error message for what's happening here has regressed.

[nguyenv]

[sc-8097]
[sc-20752]

Taking a look at this branch again due to a recent related bug.

[shortcut-integration]

This pull request has been linked to:

• Shortcut Story #8097: Clarify & simplify the full_domain logic
• Shortcut Story #20752: from_pandas bug when sparse is False

[nguyenv]

I was mistakenly under the impression that tiledb.Dim(domain=(-128, 126), tile=254, dtype=np.int8) was a valid tile extent for int8. But since the max value of int8 is 128, not 256, we can't have an extent larger than 128. I've corrected the logic in calculating tile size with this in mind.