Fix wrong name of groupBitmapAnd/Or/Xor.

[amosbird]

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Changelog category (leave one):

• Bug Fix

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Fix incorrect function names of groupBitmapAnd/Or/Xor. This fixes

SELECT
    groupBitmapAnd(bitmapBuild([toInt32(1)])),
    groupBitmapOr(bitmapBuild([toInt32(1)])),
    groupBitmapXor(bitmapBuild([toInt32(1)]))
FROM cluster(test_cluster_two_shards, numbers(10))

DB::Exception: The type AggregateFunction(groupBitmap, Int32) of argument for aggregate function groupBitmap is illegal, because it cannot be used in Bitmap operations: while receiving packet from 127.0.0.2:9000: While executing Remote. (ILLEGAL_TYPE_OF_ARGUMENT)

Detailed description / Documentation draft:

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