fix endianness in +max, +min, +ravel

[litlep-nibbyt]

Corrected behavior:

> ar
[ meta=[shape=[10 1 ~] bloq=5 kind=%real prec=~]
  data=0x1.4105.d2cb.4078.65e5.3f17.12ad.c107.fcae.4158.4844.be97.1567.408d.eef3.c117.1665.c111.cbb5.c0a6.6743
]
> `(list @rs)`(ravel:la:la ar)
~[.-5.200105 .-9.112233 .-9.442967 .4.4354186 .-0.29508516 .13.517643 .-8.499189 .0.5901287 .3.8812191 .8.363963]
> `@rs`data:(max:la:la ar)
.13.517643
> `@rs`data:(min:la:la ar)
.-9.442967

[sigilante]

OK, so for instance we have a test like this:

++  test-set-item-2d  ^-  tang
  =/  input-meta  [shape=~[3 3] bloq=4 kind=%uint prec=~]
  =/  input-magic-3x3-4u  (magic:la input-meta)
  ;:  weld
    %+  expect-eq
      !>((en-ray:la input-meta ~[~[0xf 0x1 0x2] ~[0x3 0x4 0x5] ~[0x6 0x7 0x8]]))
      !>((set-item:la input-magic-3x3-4u ~[0 0] 0xf))
    %+  expect-eq
      !>((en-ray:la input-meta ~[~[0x0 0x1 0x2] ~[0x3 0xf 0x5] ~[0x6 0x7 0x8]]))
      !>((set-item:la input-magic-3x3-4u ~[1 1] 0xf))
    %+  expect-eq
      !>((en-ray:la input-meta ~[~[0x0 0x1 0x2] ~[0x3 0x4 0x5] ~[0x6 0xf 0x8]]))
      !>((set-item:la input-magic-3x3-4u ~[2 1] 0xf))
    %-  expect-fail
      |.((set-item:la input-magic-3x3-4u ~[3 3] 0xf))
  ==

>   test-set-item-1d: took ms/63.839
FAILED  /tests/lib/lagoon-array-utils/test-set-item-1d
  expected
[meta=[shape=~[8] bloq=3 kind=%uint fxp=~] data=0x1.0f01.0203.0405.0607]
  actual  
[meta=[shape=~[8] bloq=3 kind=%uint fxp=~] data=0x1.0001.0203.0405.060f]
  expected
[meta=[shape=~[8] bloq=3 kind=%uint fxp=~] data=0x1.0001.0203.0405.060f]
  actual  
[meta=[shape=~[8] bloq=3 kind=%uint fxp=~] data=0x1.0f01.0203.0405.0607]
  expected
[meta=[shape=~[8] bloq=3 kind=%uint fxp=~] data=0x1.0001.020f.0405.0607]
  actual  
[meta=[shape=~[8] bloq=3 kind=%uint fxp=~] data=0x1.0001.0203.0f05.0607]