Berry stores compiled bytecode into IRAM, freeing space in heap

[s-hadinger]

Description:

Enabled by default with #define USE_BERRY_IRAM, when no PSRAM is present, compiled Berry bytecode is moved into IRAM rather than DRAM. This allows us to use the ~40KB of untapped IRAM (IRAM needs reads/writes to be 32 bits aligned which does not make it suitable for any use).

No impact on speed.

Note: only ktab (list of constants), blineinfo (line numbers for debug) and code (actual bytecode) are move to IRAM, which makes typically 30%-40% of memory used by custom code.

Note2: when using #define USE_BERRY_DEBUG, the line number information has its size slightly increased, but can be moved to IRAM, so that's a positive net benefit.

Checklist:

• The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works with Tasmota core ESP8266 V.2.7.4.9
• The code change is tested and works with Tasmota core ESP32 V.2.0.2
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass