Modify bq_to_vcf integration tests to verify default 1-based coordinate

[samanvp]

In #636 we added a new flag bq_uses_1_based_coordinate to allow users to export variants from BQ tables that are using either 0-baed on 1-based coordinate.

Note that our default value for coordinate (both bq_uses_1_based_coordinate and use_1_based_coordinate) is set to 1-based. That's why in #633 we updated all our integration tests to test the default path and added a few for testing 0-based.

We need to do the same thing for bq_to_vcf integration tests:

• we should update their use_1_based_coordinate
• we should remove "bq_uses_1_based_coordinate": false, line from the json files (so we will use the default True value).

Here is the list of tests that needs to be updated:

• bq_to_vcf_tests/no_options.json
• bq_to_vcf_tests/option_allow_incompatible_schema.json
• bq_to_vcf_tests/option_customized_export.json
• bq_to_vcf_tests/option_number_of_bases_per_shard.json
• bq_to_vcf_tests/option_preserve_sample_order.json
• bq_to_vcf_tests/option_representative_header_file.json
• bq_to_vcf_tests/option_use_1_based_coordinate.json