feat: support prettier-ignore-start/-end in addition to @formatter:off/:on

[jtkiesel]

What changed with this PR:

In addition to @formatter:off/@formatter:on comments, now prettier-ignore-start/prettier-ignore-end comments are supported as well, much like Prettier supports for range ignore in Markdown files. Also fixes a bug that affected proper handling of block-style comments containing the range ignore toggles.

Example

Input

// prettier-ignore-start
public class PrettierIgnoreClass {
  public void myMethod(int param1, int param2, int param3, int param4, int param5, int param6, int param7, int param8, int param9, int param10) {

  }
}
/* prettier-ignore-end */
public class PrettierIgnoreClass {
  public void myMethod(int param1, int param2, int param3, int param4, int param5, int param6, int param7, int param8, int param9, int param10) {

  }
}
/* @formatter:off */
public class PrettierIgnoreClass {
  public void myMethod(int param1, int param2, int param3, int param4, int param5, int param6, int param7, int param8, int param9, int param10) {

  }
}
// @formatter:on
public class PrettierIgnoreClass {
  public void myMethod(int param1, int param2, int param3, int param4, int param5, int param6, int param7, int param8, int param9, int param10) {

  }
}

Output

// prettier-ignore-start
public class PrettierIgnoreClass {
  public void myMethod(int param1, int param2, int param3, int param4, int param5, int param6, int param7, int param8, int param9, int param10) {

  }
}

/* prettier-ignore-end */
public class PrettierIgnoreClass {

  public void myMethod(
    int param1,
    int param2,
    int param3,
    int param4,
    int param5,
    int param6,
    int param7,
    int param8,
    int param9,
    int param10
  ) {}
}

/* @formatter:off */
public class PrettierIgnoreClass {
  public void myMethod(int param1, int param2, int param3, int param4, int param5, int param6, int param7, int param8, int param9, int param10) {

  }
}

// @formatter:on
public class PrettierIgnoreClass {

  public void myMethod(
    int param1,
    int param2,
    int param3,
    int param4,
    int param5,
    int param6,
    int param7,
    int param8,
    int param9,
    int param10
  ) {}
}

Relative issues or prs:

Closes #735