configurable stack and heap memory size (#288)

- Allow configuration of the maximum heap and stack size via CLI flags
and JSON input settings.
- Increase the default value for the stack size to 32kb.

---------

Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com>

CHANGELOG.md

@@ -8,8 +8,10 @@ Supported `polkadot-sdk` rev:`c29e72a8628835e34deb6aa7db9a78a2e4eabcee`
 
 ### Added
 - The `revive-runner` helper utility binary which helps to run contracts locally without a blockchain node. 
+- Allow configuration of the EVM heap memory size and stack size via CLI flags and JSON input settings.
 
 ### Changed
+- The default PVM stack memory size was increased from 16kb to 32kb.
 
 ### Fixed
 - Constructors avoid storing zero sized immutable data on exit.