fix: remove misleading 'Bearer ' prefix from -BearerToken/-Token CBH examples

[pavankadabala-png]

Several LCS cmdlets had CBH .EXAMPLE blocks showing -BearerToken and -Token parameters with a "Bearer " prefix in the placeholder value:

-BearerToken "Bearer JldjfafLJdfjlfsalfd..."

The correct form is the raw token only:

-BearerToken "JldjfafLJdfjlfsalfd..."

The three public cmdlets (Invoke-D365LcsUpload, Get-D365LcsDeploymentStatus, Invoke-D365LcsDeployment) already contain normalization code that auto-prepends "Bearer " when the parameter does not start with it. The examples therefore implied an unnecessary prefix that could mislead users into double-prefixing tokens or authentication errors.

Changed: 3 public cmdlets + 6 internal functions — .EXAMPLE / .PARAMETER description text only.
Not changed: normalization code (StartsWith("Bearer ") guard) — left intact for backward compatibility.
invoke-requesthandler.ps1 excluded — its example passes Authorization header directly, which is correct.

Closes #666