feat: size and alignment in type info

[baszalmstra]

This PR adds the size and alignment of a type to the TypeInfo and removes these fields from StructInfo since those are now obsolete. I tried created clean commits to be able to clearly see all the changes that went into this PR.

This PR is based on #97.

[codecov]

Codecov Report

Merging #98 into master will increase coverage by 0.00%.
The diff coverage is 84.54%.

@@           Coverage Diff           @@
##           master      #98   +/-   ##
=======================================
  Coverage   76.84%   76.84%           
=======================================
  Files         130      132    +2     
  Lines       10569    10643   +74     
=======================================
+ Hits         8122     8179   +57     
- Misses       2447     2464   +17     

Impacted Files	Coverage Δ
crates/mun_runtime/src/lib.rs	90.19% <ø> (ø)
crates/tools/src/abi.rs	70.37% <ø> (ø)
crates/mun_codegen/src/ir.rs	55.76% <44.00%> (+8.22%)	⬆️
crates/mun_codegen/src/type_info.rs	64.83% <53.84%> (+8.31%)	⬆️
crates/mun_abi/src/autogen.rs	52.22% <55.55%> (-5.00%)	⬇️
crates/mun_codegen/src/ir/dispatch_table.rs	90.00% <71.42%> (-1.13%)	⬇️
crates/mun_runtime/src/static_type_map.rs	87.50% <87.50%> (ø)
crates/mun_codegen/src/ir/ty.rs	94.00% <95.12%> (+1.59%)	⬆️
crates/mun_runtime/src/type_info.rs	95.89% <95.89%> (ø)
crates/mun_abi/src/autogen_impl.rs	97.64% <100.00%> (-0.14%)	⬇️
... and 14 more

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