Move performance testing YAML from dotnet/runtime to dotnet/performance (#4639)

* Move runtime yaml into performance repository

* Fix missing end parenthesis

* Fix string quoting issues

* Fix elseif

* Fix variable propagation

* Fix variables to be an array

* Another attempt at fixing variables

* Fix invalid variables

* Fix template paths

* Fix more template paths

* Fix indentation

* Try fix the job name

* Use variables correctly

* Use only compile time parameters for job names

* Try remove new lines

* Use single quotes

* Ensure spaces are converted to underscore

* Change runtime flavor to be additional job identifier

* Fix conditions on arguments for python script

* Add missing parenthesis

* Ensure buildConfig is properly capitalised for artifacts

* Ensure args are properly quoted and ensure custom targetCsproj is passed in

* Fix dotnet version link argument

* Fix duplicated logs

* Fix logs name

* Fix attempt# replace

* Another attempt at getting the log name to work

* Remove runtime expression from logs name

* Ensure sys.exit is called in run_performance_job.py

* Move all runtime jobs to performance repository

* Fix cross repository template reference

* Ensure runtime-perf-job.yml uses repository reference

* Ensure runtime is cloned first as it cleans the directory

* Port changes from dotnet/runtime

* Fix template conditions

* Fix template condition

* Set correct path to performance repository

* Move pipelines to separate directory

* Fix incorrect template for download artifact step

* Fix unbalanced parentheses

* Fix more unbalanced parentheses

* Fix indentation

* Address PR comments

* Fix default parameter values for pipeline

* Fix if else condition for python variable

Author: caaavik-msft