Support triple-quoted notation

[IsraelBoiko-Objective]

Add support to triple-quoted notation (https://www.baeldung.com/kotlin-string-template):

• Without escapes ex.:

  val path = """C:\Dir1\Dir2"""

• Multi-line

  val msg = """Item 1: $1.00
  Item 2: $0.50"""

• Internal quotemark

  val str = """The field "abc" is readonly"""