FMPL display issues

[ruscoder]

• Keys are sorted in non-intuitive way (else after if, assign in the end of block)
• When mapper is saved, double quotes are replaced with single, and single quotes inside - escaped

'{% if %myCoding.exists() %}':
  code: '{{ %myCoding.code }}'
  system: '{{ %myCoding.system }}'
  display: '{{ %displayValue }}'
  '{% assign %}':
    displayValue:
      - '{% if %myCoding.code = ''code1'' %}': Another Display 1
      - '{% if %myCoding.code = ''code2'' %}': Another Display 2
      - '{% if %myCoding.code = ''code3'' %}': Another Display 3
      - '{% if %myCoding.code = ''code4'' %}': Another Display 4
      - Other