refactor: add noexcept everywhere it is possible

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.03% :tada:

Comparison is base (93d052c) 99.26% compared to head (cbe8261) 99.30%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #48 +/- ## ========================================== + Coverage 99.26% 99.30% +0.03% ========================================== Files 55 55 Lines 5598 5596 -2 ========================================== Hits 5557 5557 + Misses 41 39 -2 ``` | [Files Changed](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert) | Coverage Δ | | |---|---|---| | [include/emio/detail/format/ranges.hpp](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert#diff-aW5jbHVkZS9lbWlvL2RldGFpbC9mb3JtYXQvcmFuZ2VzLmhwcA==) | `100.00% <ø> (ø)` | | | [include/emio/buffer.hpp](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert#diff-aW5jbHVkZS9lbWlvL2J1ZmZlci5ocHA=) | `99.27% <100.00%> (+<0.01%)` | :arrow_up: | | [include/emio/detail/args.hpp](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert#diff-aW5jbHVkZS9lbWlvL2RldGFpbC9hcmdzLmhwcA==) | `100.00% <100.00%> (ø)` | | | [include/emio/detail/bignum.hpp](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert#diff-aW5jbHVkZS9lbWlvL2RldGFpbC9iaWdudW0uaHBw) | `99.40% <100.00%> (ø)` | | | [include/emio/detail/conversion.hpp](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert#diff-aW5jbHVkZS9lbWlvL2RldGFpbC9jb252ZXJzaW9uLmhwcA==) | `98.21% <100.00%> (+1.69%)` | :arrow_up: | | [include/emio/detail/ct\_vector.hpp](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert#diff-aW5jbHVkZS9lbWlvL2RldGFpbC9jdF92ZWN0b3IuaHBw) | `100.00% <100.00%> (ø)` | | | [include/emio/detail/format/dragon.hpp](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert#diff-aW5jbHVkZS9lbWlvL2RldGFpbC9mb3JtYXQvZHJhZ29uLmhwcA==) | `97.74% <100.00%> (ø)` | | | [include/emio/detail/format/formatter.hpp](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert#diff-aW5jbHVkZS9lbWlvL2RldGFpbC9mb3JtYXQvZm9ybWF0dGVyLmhwcA==) | `98.27% <100.00%> (ø)` | | | [include/emio/detail/parser.hpp](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert#diff-aW5jbHVkZS9lbWlvL2RldGFpbC9wYXJzZXIuaHBw) | `97.34% <100.00%> (ø)` | | | [include/emio/detail/scan/scan\_from.hpp](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert#diff-aW5jbHVkZS9lbWlvL2RldGFpbC9zY2FuL3NjYW5fZnJvbS5ocHA=) | `100.00% <100.00%> (ø)` | | | ... and [6 more](https://app.codecov.io/gh/Viatorus/emio/pull/48?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Toni+Neubert) | |

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