by including headers using "../[header]" when done from C files in
subdirectories, we do not need to specify the lib source dir as an
include path and we reduce the risk of header name collisions with
headers in the SDK using the same file names.
Idea-by: Kai Pastor
Ref: #16949Closes#16991
Seen with downloaded mingw 7.3.0 when built against MSYS2 mbedTLS 3.6.2:
```
lib/vtls/cipher_suite.c: In function 'cs_zip_to_str':
lib/vtls/cipher_suite.c:789:16: error: conversion to 'uint8_t {aka unsigned char}' from 'int' may alter its value [-Werror=conversion]
indexes[1] = ((zip[0] << 4) & 0x3F) | zip[1] >> 4;
^
lib/vtls/cipher_suite.c:790:16: error: conversion to 'uint8_t {aka unsigned char}' from 'int' may alter its value [-Werror=conversion]
indexes[2] = ((zip[1] << 2) & 0x3F) | zip[2] >> 6;
^
lib/vtls/cipher_suite.c:793:16: error: conversion to 'uint8_t {aka unsigned char}' from 'int' may alter its value [-Werror=conversion]
indexes[5] = ((zip[3] << 4) & 0x3F) | zip[4] >> 4;
^
lib/vtls/cipher_suite.c:794:16: error: conversion to 'uint8_t {aka unsigned char}' from 'int' may alter its value [-Werror=conversion]
indexes[6] = ((zip[4] << 2) & 0x3F) | zip[5] >> 6;
^
```
Ref: https://github.com/curl/curl/actions/runs/13719756989/job/38372409927?pr=16429#step:10:21
Cherry-picked from #16429Closes#16614
booleans should use the type 'bool' and set the value to TRUE/FALSE
non-booleans should not be 'bool' and should not set the value to
TRUE/FALSE
Closes#15123
Fixes:
```
curl\lib\vtls\cipher_suite.c(193,3): error C2220: the following warning is treated as an error
curl\lib\vtls\cipher_suite.c(193,3): warning C4310: cast truncates constant value
```
Closes#14341
Take advantage of the Curl_cipher_suite_walk_str() and
Curl_cipher_suite_get_str() functions introduced in commit fba9afeb.
This also fixes CURLOPT_SSL_CIPHER_LIST not working at all for bearssl
due to commit ff74cef5.
Closes#13464
Use a lookup list to set the cipher suites, allowing the
ciphers to be set by either openssl or IANA names.
To keep the binary size of the lookup list down we compress
each entry in the cipher list down to 2 + 6 bytes using the
C preprocessor.
Closes#13442
