devolving the removal of various crud to `HtmlLyricsProvider`;
log initial query and use new `StartsOrEndsMatch()` static to
match JSON replies, log each request, and break if full match;
`StartsOrEndsMatch()` ignores some common punctuation variations
& normalizes single quotes and allows match at beginning or end
HtmlLyricsProvider: fix `multiple` mode not to terminate on first
batch, and defer processing till have whole HTML (avoids issues
with tags spanning batches);
add param to take list of regular expressions to remove from HTML
prior to general processing (used only by `GeniusLyrics` for now)
README.md etc: update list of lyrics providers supported
9030b2567b