Extract method for finding and reading generator version from skeleton header
Extract method for finding and reading generator version from skeleton header

GitOrigin-RevId: eed6b2ac14f7949e44ac00a88ec1c04c22e2c6f3

allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community