added BG9 test case

[Kane1944]

Description

Added BG9 test case in readingsBarGroupQuantity.js
Added file expected_bar_group_ri_15-20_mu_kWh_gu_MJ_st_-inf_et_inf_bd_1.csv

Joshua Leon - @Kane1944
Salvador Nunez - @SalvadorN323
Omar Rafiq - @omarraf

Partly addresses #962

Type of change

• Note merging this changes the database configuration.
• This change requires a documentation update

Checklist

• I have followed the OED pull request ideas
• I have removed text in ( ) from the issue request
• You acknowledge that every person contributing to this work has signed the OED Contributing License Agreement and each author is listed in the Description section.

Limitations

N/A

[huss]

Thanks to @Kane1944, @SalvadorN323 & @omarraf for their first contribution to OED. Review and testing found it works as expected. If it is converted from a draft to regular pull request then it should be accepted (just noticed it is draft so already did a review).

[huss]

As previously noted, everything looks good. Congratulations to @Kane1944, @SalvadorN323 & @omarraf on their first accepted contribution.