Add support for modern, better pitch dictionaries, ie: NHK, 大辞泉、新明解、大辞林 pitch accent dicts

[phamthaison1207]

For some reason, these pitch accent dicts that work on yomitan don't work on jidoujisho v2.9.0 preview 2

I think it might be a problem with structured content support or sth else.

I hope you can support them too since they are really reputable sources for pitch accent studying.

Currently only 2 pitch dicts are supported on mobile: the kanjium one and the アクセント辞典v2
[Pitch] NHK 2016.zip
[Pitch] 三省堂第八版.zip
[Pitch] 新明解第八版.zip
[Pitch] 大辞泉.zip
[Pitch] 大辞林第四版.zip
[Pitch] NHK 1998.zip