Change MU Atlas dev database connection to application snowflake

[vasanthi014]

@shossain-mizzou

Let's use i2b2db snowflake account for atlas(I will rename the snowflake instance name to applicationdb later). URL for snowflake: https://app.snowflake.com/tknltga/i2b2db

Use following for MU ATLAS application --	Name
Service User name	SERVICE_USER_ATLAS
Role	OMOP_ATLAS
Warehouse	ATLAS_MU_WH
Database	ATLAS_MU_DEV

Use following for GPC ATLAS application --	Name
Service User name	SERVICE_USER_ATLAS
Role	OMOP_ATLAS
Warehouse	ATLAS_GPC_WH
Database	ATLAS_GPC_DEV

OMOP_ATLAS role has select permissions to CDM, vocabulary schemas and all permissions to results and temp schemas

[shossain-mizzou]

New MU datasource:

[shossain-mizzou]

new gpc datasource