Issue #2957425 by tedbow, johndevman, mpotter, tim.plunkett, hawkeye.twolf, alexpott, Berdir, samuel.mortenson, xjm, kevincrafts, jibran, amateescu, larowlan, twfahey, EclipseGc, sjerdo, japerry, mtodor, phenaproxima, johnzzon, mglaman: Allow the inline creation of non-reusable Custom Blocks in the layout builder

Revert "Issue #2957425 by tedbow, johndevman, tim.plunkett, hawkeye.twolf, Berdir, alexpott, samuel.mortenson, kevincrafts, jibran, larowlan, amateescu, twfahey, sjerdo, mtodor, japerry, xjm, phenaproxima, mglaman, EclipseGc, johnzzon: Allow the inline creation of non-reusable Custom Blocks in the layout builder"

This reverts commit 500403b4.

Issue #2957425 by tedbow, johndevman, tim.plunkett, hawkeye.twolf, Berdir, alexpott, samuel.mortenson, kevincrafts, jibran, larowlan, amateescu, twfahey, sjerdo, mtodor, japerry, xjm, phenaproxima, mglaman, EclipseGc, johnzzon: Allow the inline creation of non-reusable Custom Blocks in the layout builder

Issue #2976334 by tedbow, Wim Leers, johndevman, tim.plunkett, amateescu, phenaproxima, larowlan, Berdir, EclipseGc, samuel.mortenson, johnzzon: Allow Custom blocks to be set as non-reusable adding access restriction based on where it was used

Issue #2976334 by tedbow, Wim Leers, johndevman, tim.plunkett, phenaproxima, larowlan, samuel.mortenson, Berdir, EclipseGc, johnzzon: Allow Custom blocks to be set as non-reusable adding access restriction based on where it was used

Issue #2973615 by johndevman, tim.plunkett, johnzzon: Add Section delta as extra data on filtered block definitions