Leaf 3 - templates still cached for debug builds

[0xTim]

In Leaf 2 templates wouldn't be cached during debug builds, and only when running in release. This doesn't appear to have been transitioned over to Leaf 3 and should be reimplemented

[tanner0101]

#88 merged. This should be fixed now

[linqingmo]

@tanner0101 I think it will still cache on development.
Renderer.swift

if cache {
    leafFile = file.read(at: fullPath, chunkSize: 2048)
} else {
    leafFile = file.cachedRead(at: fullPath, chunkSize: 2048)
}

I'm not sure whether it should be

if cache {
    leafFile = file.cachedRead(at: fullPath, chunkSize: 2048)
} else {
    leafFile = file.read(at: fullPath, chunkSize: 2048)
}

[tanner0101]

@linqingmo did you run swift package update? That code looks old.

[linqingmo]

@tanner0101 Thanks.