Add SHA256 digest to cached file name

[zFERDQFREZrzfq]

Replaces base64 encoding by SHA256 digest to generate cached files names.

Fixes caching failure when URL is too long (e.g. discord hosted ones).
Fixes illegal characters on Windows (namely '\') that can show up in base64.

I also did a patch for the last release (2.0.31) : https://github.com/zFERDQFREZrzfq/watermedia/tree/patch-cache-2.0.31

[SrRapero720]

you can PR the same patch for 2.0.x branch. with the requested changes ofc

[zFERDQFREZrzfq]

Should I better import the org.apache.commons.codec.binary.Hex class in the top of leave it like this?

[SrRapero720]

for this branch master yes. import the Hex
minecraft 1.16.5 have commons-codec. But 1.12.2 is not testable to get if had the proper dependency (and if 1.12.2 have not commons-io i doubt have commons-codecs). so this patch can't be ported to 2.0.x

if can be removed Hex usage can be aproved on 2.0.x

[SrRapero720]

honestly, if can be copied the method into a IOTool class can be way better, considering we only are using one method, not a worth amount of methods to justificate have another shaded library

[zFERDQFREZrzfq]

for this branch master yes. import the Hex minecraft 1.16.5 have commons-codec. But 1.12.2 is not testable to get if had the proper dependency (and if 1.12.2 have not commons-io i doubt have commons-codecs). so this patch can't be ported to 2.0.x

if can be removed Hex usage can be aproved on 2.0.x

Oh I didn't knew that Minecraft must have the dependency too. I'm brand new to Minecraft modding so I don't know the shenanigans...
If we can't embed the package, then I need to write a function that convert bytes to hex string. I used commons-codecs to avoid reinventing the wheel.

[zFERDQFREZrzfq]

honestly, if can be copied the method into a IOTool class can be way better, considering we only are using one method, not a worth amount of methods to justificate have another shaded library

Oh yes we can copy the function alone if this is allowed

[zFERDQFREZrzfq]

I replaced the dependency to commons-codec as suggested :)