Stable TMPL_ byte sizes

[iglosiggio]

Proposed Changes

This PR modifies the way we generate bytecode so a statically-known amount of bytes is used whenever possible. For uint64 values this makes our constants bigger (unless -O2 is chosen).

• Add a num_bytes property to the TemplateVar definition in both the MIR an TEAL layers
• Add a _TemplateInt marker class that allows the encoding layer to distinguish regular constants from template variable constants
• Update the compiled code

TO-DO

• Check that these changes work properly with cblock offsets when debugging
• Implement the _TemplateInt change in a cleaner way

Outside scope

• Fix typechecking issues when substituting template variables (AK-1224)

[engineering-ci]

⚠️ No changelog fragment detected

[engineering-ci]

Name	Status	O0 bytes	O1 bytes	O2 bytes	O0 ops	O1 ops	O2 ops
arc_56	🔺	+9	+9	-	-	-	-
debug	🔺	+9	+9	-	-	-	-
logic_signature/pre_approved_sale	🔺	+18	+18	-	-	-	-
template_variables	🔺	+18	+18	-	-	-	-
Total	🔺	+54	+54	-	-	-	-

[engineering-ci]

Checking stubs for changes and corresponding version bump in origin/iglosiggio/stable-tmpl-byte-size

Last puyapy release: v5.8.1
This branch stubs version: 3.5.0
Last released stubs version: 3.5.0
Main stubs version: 3.5.0

✅ Stub files unchanged
✅ Stub check passed!

[engineering-ci]

Tests	Skipped	Failures	Errors	Time
1693	3 💤	0 ❌	0 🔥	11m 45s ⏱️

[daniel-makerx]

Should this be 10 bytes? If each byte can carry 7 bits then 7 * 9 is 63 bits, one short of 64