Fix issues identified by Clang Tidy

[rianquinn]

Now that we have a bunch of checks in Clang Tidy for checking
for AUTOSAR compliance, these checks found a number of issues
with our implementation of the BSL. This patch addresses a
number of these issues, but is really just the start of a much
larger effort to get this code more into compliance as we better
define how we want to address AUTOSAR and ASIL compliance.

[codecov]

Codecov Report

Merging #43 into master will decrease coverage by 0.90%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##            master      #43      +/-   ##
===========================================
- Coverage   100.00%   99.09%   -0.91%     
===========================================
  Files           55       57       +2     
  Lines         1801     2205     +404     
===========================================
+ Hits          1801     2185     +384     
- Misses           0       20      +20     

Impacted Files	Coverage Δ
include/bsl/fmt.hpp	88.23% <0.00%> (-11.77%)	⬇️
include/bsl/basic_string_view.hpp	97.30% <0.00%> (-2.70%)	⬇️
include/bsl/safe_integral.hpp	98.67% <0.00%> (-1.33%)	⬇️
include/bsl/span.hpp	99.29% <0.00%> (-0.71%)	⬇️
include/bsl/fmt_options.hpp	99.34% <0.00%> (-0.66%)	⬇️
include/bsl/byte.hpp	100.00% <0.00%> (ø)
include/bsl/move.hpp	100.00% <0.00%> (ø)
include/bsl/swap.hpp	100.00% <0.00%> (ø)
include/bsl/array.hpp	100.00% <0.00%> (ø)
include/bsl/debug.hpp	100.00% <0.00%> (ø)
... and 44 more