BucketsApiImpl.createBucket does not convey schemaType

Steps to reproduce:
List the minimal actions needed to reproduce the behavior.

1. issue a BucketsApi.createBucket request with a Bucket object having schemaType explicit
2. verify that the created bucket has schema type implicit

Expected behavior:

• Obviously one would expect the bucket to have explicit bucket schema type, not implicit

Actual behavior:

• The created bucket has implicit schema type

Problem lines of code

• BucketsApiImpl.createBucket does not correctly invoke PostBucketRequest.schemaType on the request object. (See code here.) So it is basically ignoring the schema type set on the Bucket object.

Start in client/src/main/java/com/influxdb/client/internal/BucketsApiImpl.java at createBucket and inspect how the Bucket is mapped to PostBucketRequest. Ensure the request conveys the Bucket schemaType so an explicit schema remains explicit, then verify the created bucket's schema type against the reproduction steps.