create_main_joint_tables: Create Main Joint Tables
In N1h1l1sT/dbautojoinr: Automatic Joining of SQL Tables

Get a list of all the Main tables in the database joined with all their relationships with only Include == TRUE columns

create_main_joint_tables(
  db_fields,
  db_forced_rel,
  con = db$con,
  DeselectKeysIfIncludeFalse = TRUE,
  Verbose = TRUE,
  get_sql_query = TRUE
)

`db_fields`	A DF with columns: "Include, KeyType, Table, Column, Type, RelationshipWithTable, RelationshipWithColumn, Transformation, Comment" about the User Selected fields and Relationships
`db_forced_rel`	A Named String Vector. The vector names MUST point to the main table to be used for the 1-Joint-Table as its LHS
`con`	A dbConnect DBI connection object to a SQL Database
`DeselectKeysIfIncludeFalse`	A Boolean. Must be FALSE if we need to continue to 1-Joint-Table, otherwise needed Identity and Foreign keys might be missing
`Verbose`	A Boolean. Verbose = TRUE will output the consecutive joins as they happen
`get_sql_query`	A Boolean. get_sql_query = TRUE will create/edit the db$sql_main_joint_tables that output the SQL Code for the tables

main_joint_tables <-
  create_main_joint_tables(db_fields, c(Hours_SiteID = "Site_SiteID", Hours_EmployeeID = "Employee_ID"), FALSE, db$con) %>%

print(main_joint_tables)
All the Main Tables (tables with foreign keys) are joined with their relationships and are returned as a list of tibbles (n = number of tables with foreign keys that also contain User Selected fields)