Improves performance by caching the multi-timeframe (MTF) confirmation result.
Previously, the MTF confirmation logic (checking EMA crosses on a lower timeframe) was executed on every price tick. This involved expensive `CopyBuffer` calls, leading to unnecessary CPU usage.
This change introduces a caching mechanism where the MTF result is only recalculated when a new bar forms on the lower timeframe. This drastically reduces redundant computations, resulting in a more efficient Expert Advisor and Indicator, especially in volatile market conditions. The `CopyTime` function is used to efficiently check for a new bar on the `LowerTF`.
A bug in the initial implementation where the `_Symbol` was missing from the `CopyTime` call has been fixed and verified.
Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
