Release beta-v2.0-rc1

Draft release of version beta-v2.0-rc1.

What's Changed

• Improve MMIO line counting performance by @ahamlat in #1831
• Tweak GOMEMLIMIT by @DavePearce in #1830
• Low gas stipend precompile calls by @lorenzogentile404 in #1754
• release beta-v2.0-rc1: updated gradle.properties + CHANGELOG by @OlivierBBB in #1840
• Extensive OOGX tests involving memory expansion + gas estimation tool BytecodeRunner.runOnlyForGasCost + MSIZE (#1783) by @lorenzogentile404 in #1783

Full Changelog: beta-v1.3-rc3...beta-v2.0-rc1