break and continue with whitespace control issue

```
Render result was different!
Input:
########################

this should print

{%- break -%}

this should not print

########################

code: liquid_output == solid_output
left: "########################\n\nthis should print\n"
right: "########################\n\nthis should print"
```

```
Render result was different!
Input:
########################

this should print

{%- continue %}

this should not print

########################

code: liquid_output == solid_output
left: "########################\n\nthis should print\n"
right: "########################\n\nthis should print"
```

https://github.com/edgurgel/solid/blob/master/test/integration/whitespace_control_cases/break_tag_test.exs#L3-L15
& https://github.com/edgurgel/solid/blob/master/test/integration/whitespace_control_cases/continue_tag_test.exs#L3-L15

Start with test/integration/whitespace_control_cases/break_tag_test.exs and continue_tag_test.exs, then trace the implementation used by these whitespace-control cases. Run the two tests to reproduce the missing trailing newline for break and continue. Done means both cases produce the expected rendered output.

Written by the indexing model from the issue text.